diff --git a/bin/core/imag-annotate/src/main.rs b/bin/core/imag-annotate/src/main.rs
index c764758d..ada33757 100644
--- a/bin/core/imag-annotate/src/main.rs
+++ b/bin/core/imag-annotate/src/main.rs
@@ -208,7 +208,7 @@ fn list(rt: &Runtime) {
         rt.store()
             .all_annotations()
             .map_err_trace_exit_unwrap()
-            .into_get_iter(rt.store())
+            .into_get_iter()
             .trace_unwrap_exit()
             .map(|opt| opt.ok_or_else(|| format_err!("Cannot find entry")))
             .trace_unwrap_exit()
diff --git a/bin/core/imag-ids/src/main.rs b/bin/core/imag-ids/src/main.rs
index 72c07b6a..b0b84199 100644
--- a/bin/core/imag-ids/src/main.rs
+++ b/bin/core/imag-ids/src/main.rs
@@ -118,23 +118,27 @@ fn main() {
         }
     })
     .map(|id| if print_storepath {
-        id
+        (Some(rt.store().path()), id)
     } else {
-        id.without_base()
+        (None, id)
     });
 
     let mut stdout = rt.stdout();
     trace!("Got output: {:?}", stdout);
 
-    iterator.for_each(|id| {
-        let _ = rt.report_touched(&id).unwrap_or_exit(); // .map_err_trace_exit_unwrap();
-
+    iterator.for_each(|(storepath, id)| {
+        rt.report_touched(&id).unwrap_or_exit();
         if !rt.output_is_pipe() {
             let id = id.to_str().map_err_trace_exit_unwrap();
             trace!("Writing to {:?}", stdout);
-            writeln!(stdout, "{}", id)
-                .to_exit_code()
-                .unwrap_or_exit();
+
+            let result = if let Some(store) = storepath {
+                writeln!(stdout, "{}/{}", store.display(), id)
+            } else {
+                writeln!(stdout, "{}", id)
+            };
+
+            result.to_exit_code().unwrap_or_exit();
         }
     })
 }
diff --git a/bin/core/imag-link/src/main.rs b/bin/core/imag-link/src/main.rs
index dc9be715..cfd2c4fe 100644
--- a/bin/core/imag-link/src/main.rs
+++ b/bin/core/imag-link/src/main.rs
@@ -132,8 +132,7 @@ fn get_entry_by_name<'a>(rt: &'a Runtime, name: &str) -> Result<Option<FileLockE
     use libimagstore::storeid::StoreId;
 
     debug!("Getting: {:?}", name);
-    let result = StoreId::new(Some(rt.store().path().clone()), PathBuf::from(name))
-        .and_then(|id| rt.store().get(id));
+    let result = StoreId::new(PathBuf::from(name)).and_then(|id| rt.store().get(id));
 
     debug!(" => : {:?}", result);
     result
@@ -168,8 +167,8 @@ fn link_from_to<'a, I>(rt: &'a Runtime, from: &'a str, to: I)
         } else {
             debug!("Linking internally: {:?} -> {:?}", from, entry);
 
-            let from_id = StoreId::new_baseless(PathBuf::from(from)).map_err_trace_exit_unwrap();
-            let entr_id = StoreId::new_baseless(PathBuf::from(entry)).map_err_trace_exit_unwrap();
+            let from_id = StoreId::new(PathBuf::from(from)).map_err_trace_exit_unwrap();
+            let entr_id = StoreId::new(PathBuf::from(entry)).map_err_trace_exit_unwrap();
 
             if from_id == entr_id {
                 error!("Cannot link entry with itself. Exiting");
@@ -366,13 +365,13 @@ mod tests {
         let mut path = PathBuf::new();
         path.set_file_name(name);
 
-        let default_entry = Entry::new(StoreId::new_baseless(PathBuf::from("")).unwrap())
+        let default_entry = Entry::new(StoreId::new(PathBuf::from("")).unwrap())
             .to_str()
             .unwrap();
 
         debug!("Default entry constructed");
 
-        let id = StoreId::new_baseless(path)?;
+        let id = StoreId::new(path)?;
         debug!("StoreId constructed: {:?}", id);
 
         let mut entry = rt.store().create(id.clone())?;
diff --git a/bin/core/imag-mv/src/main.rs b/bin/core/imag-mv/src/main.rs
index ff267067..f5d4d341 100644
--- a/bin/core/imag-mv/src/main.rs
+++ b/bin/core/imag-mv/src/main.rs
@@ -72,7 +72,7 @@ fn main() {
         .cli()
         .value_of("source")
         .map(PathBuf::from)
-        .map(StoreId::new_baseless)
+        .map(StoreId::new)
         .unwrap() // unwrap safe by clap
         .map_err_trace_exit_unwrap();
 
@@ -80,7 +80,7 @@ fn main() {
         .cli()
         .value_of("dest")
         .map(PathBuf::from)
-        .map(StoreId::new_baseless)
+        .map(StoreId::new)
         .unwrap() // unwrap safe by clap
         .map_err_trace_exit_unwrap();
 
diff --git a/bin/core/imag-store/src/create.rs b/bin/core/imag-store/src/create.rs
index c6830a42..8b6cc2e2 100644
--- a/bin/core/imag-store/src/create.rs
+++ b/bin/core/imag-store/src/create.rs
@@ -44,8 +44,7 @@ pub fn create(rt: &Runtime) {
     // unwrap is safe as value is required
     let path  = scmd.value_of("path").unwrap();
     let path  = PathBuf::from(path);
-    let store = Some(rt.store().path().clone());
-    let path  = StoreId::new(store, path).map_err_trace_exit_unwrap();
+    let path  = StoreId::new(path).map_err_trace_exit_unwrap();
 
     debug!("path = {:?}", path);
 
diff --git a/bin/core/imag-store/src/delete.rs b/bin/core/imag-store/src/delete.rs
index bc1672b4..50c73d97 100644
--- a/bin/core/imag-store/src/delete.rs
+++ b/bin/core/imag-store/src/delete.rs
@@ -28,8 +28,7 @@ pub fn delete(rt: &Runtime) {
     let scmd  = rt.cli().subcommand_matches("delete").unwrap();
     let id    = scmd.value_of("id").unwrap(); // safe by clap
     let path  = PathBuf::from(id);
-    let store = Some(rt.store().path().clone());
-    let path  = StoreId::new(store, path).map_err_trace_exit_unwrap();
+    let path  = StoreId::new(path).map_err_trace_exit_unwrap();
     debug!("Deleting file at {:?}", id);
 
     let _ = rt.store()
diff --git a/bin/core/imag-store/src/get.rs b/bin/core/imag-store/src/get.rs
index 582e67d7..bf9a1eea 100644
--- a/bin/core/imag-store/src/get.rs
+++ b/bin/core/imag-store/src/get.rs
@@ -31,8 +31,7 @@ pub fn get(rt: &Runtime) {
 
     let id    = scmd.value_of("id").unwrap(); // safe by clap
     let path  = PathBuf::from(id);
-    let store = Some(rt.store().path().clone());
-    let path  = StoreId::new(store, path).map_err_trace_exit_unwrap();
+    let path  = StoreId::new(path).map_err_trace_exit_unwrap();
     debug!("path = {:?}", path);
 
     let _ = match rt.store().get(path.clone()).map_err_trace_exit_unwrap() {
diff --git a/bin/core/imag-store/src/retrieve.rs b/bin/core/imag-store/src/retrieve.rs
index e1fafce8..b359a3c4 100644
--- a/bin/core/imag-store/src/retrieve.rs
+++ b/bin/core/imag-store/src/retrieve.rs
@@ -37,8 +37,7 @@ pub fn retrieve(rt: &Runtime) {
             // unwrap() is safe as arg is required
             let id    = scmd.value_of("id").unwrap();
             let path  = PathBuf::from(id);
-            let store = Some(rt.store().path().clone());
-            let path  = StoreId::new(store, path).map_err_trace_exit_unwrap();
+            let path  = StoreId::new(path).map_err_trace_exit_unwrap();
             debug!("path = {:?}", path);
 
             rt.store()
diff --git a/bin/core/imag-store/src/update.rs b/bin/core/imag-store/src/update.rs
index cad2fd57..c2687973 100644
--- a/bin/core/imag-store/src/update.rs
+++ b/bin/core/imag-store/src/update.rs
@@ -31,8 +31,7 @@ pub fn update(rt: &Runtime) {
     let scmd  = rt.cli().subcommand_matches("update").unwrap();
     let id    = scmd.value_of("id").unwrap(); // Safe by clap
     let path  = PathBuf::from(id);
-    let store = Some(rt.store().path().clone());
-    let path  = StoreId::new(store, path).map_err_trace_exit_unwrap();
+    let path  = StoreId::new(path).map_err_trace_exit_unwrap();
 
     let _ = rt.store()
         .retrieve(path)
diff --git a/bin/core/imag-tag/src/main.rs b/bin/core/imag-tag/src/main.rs
index ddf3fa70..e3ba7f20 100644
--- a/bin/core/imag-tag/src/main.rs
+++ b/bin/core/imag-tag/src/main.rs
@@ -264,11 +264,11 @@ mod tests {
         let mut path = PathBuf::new();
         path.set_file_name(name);
 
-        let default_entry = Entry::new(StoreId::new_baseless(PathBuf::from("")).unwrap())
+        let default_entry = Entry::new(StoreId::new(PathBuf::from("")).unwrap())
             .to_str()
             .unwrap();
 
-        let id = StoreId::new_baseless(path)?;
+        let id = StoreId::new(path)?;
         let mut entry = rt.store().create(id.clone())?;
         entry.get_content_mut().push_str(&default_entry);
 
@@ -303,7 +303,7 @@ mod tests {
         debug!("Add-tags: {:?}", add);
 
         debug!("Altering things");
-        alter(&rt, StoreId::new_baseless(id.clone()).unwrap(), add, None);
+        alter(&rt, StoreId::new(id.clone()).unwrap(), add, None);
         debug!("Altered");
 
         let test_entry = rt.store().get(id).unwrap().unwrap();
@@ -338,7 +338,7 @@ mod tests {
         debug!("Rem-tags: {:?}", rem);
 
         debug!("Altering things");
-        alter(&rt, StoreId::new_baseless(id.clone()).unwrap(), add, rem);
+        alter(&rt, StoreId::new(id.clone()).unwrap(), add, rem);
         debug!("Altered");
 
         let test_entry = rt.store().get(id).unwrap().unwrap();
@@ -366,7 +366,7 @@ mod tests {
         debug!("Rem-tags: {:?}", rem);
 
         debug!("Altering things");
-        alter(&rt, StoreId::new_baseless(id.clone()).unwrap(), add, rem);
+        alter(&rt, StoreId::new(id.clone()).unwrap(), add, rem);
         debug!("Altered");
 
         let test_entry = rt.store().get(id).unwrap().unwrap();
@@ -394,7 +394,7 @@ mod tests {
         debug!("Rem-tags: {:?}", rem);
 
         debug!("Altering things");
-        alter(&rt, StoreId::new_baseless(id.clone()).unwrap(), add, rem);
+        alter(&rt, StoreId::new(id.clone()).unwrap(), add, rem);
         debug!("Altered");
 
         let test_entry = rt.store().get(id).unwrap().unwrap();
diff --git a/bin/domain/imag-contact/src/main.rs b/bin/domain/imag-contact/src/main.rs
index 9570e0ba..39c68ddf 100644
--- a/bin/domain/imag-contact/src/main.rs
+++ b/bin/domain/imag-contact/src/main.rs
@@ -73,7 +73,6 @@ use libimagerror::iter::TraceIterator;
 use libimagcontact::store::ContactStore;
 use libimagcontact::contact::Contact;
 use libimagcontact::deser::DeserVcard;
-use libimagstore::iter::get::StoreIdGetIteratorExtension;
 
 mod ui;
 mod util;
@@ -120,7 +119,7 @@ fn list(rt: &Runtime) {
         .store()
         .all_contacts()
         .map_err_trace_exit_unwrap()
-        .into_get_iter(rt.store())
+        .into_get_iter()
         .trace_unwrap_exit()
         .map(|fle| fle.ok_or_else(|| Error::from(err_msg("StoreId not found".to_owned()))))
         .trace_unwrap_exit()
@@ -206,7 +205,7 @@ fn show(rt: &Runtime) {
     rt.store()
         .all_contacts()
         .map_err_trace_exit_unwrap()
-        .into_get_iter(rt.store())
+        .into_get_iter()
         .trace_unwrap_exit()
         .map(|o| o.unwrap_or_else(|| {
             error!("Failed to get entry");
@@ -257,7 +256,7 @@ fn find(rt: &Runtime) {
         .store()
         .all_contacts()
         .map_err_trace_exit_unwrap()
-        .into_get_iter(rt.store())
+        .into_get_iter()
         .map(|el| {
             el.map_err_trace_exit_unwrap()
                 .ok_or_else(|| {
diff --git a/lib/core/libimagrt/src/runtime.rs b/lib/core/libimagrt/src/runtime.rs
index 8fb59022..4f2a485f 100644
--- a/lib/core/libimagrt/src/runtime.rs
+++ b/lib/core/libimagrt/src/runtime.rs
@@ -22,7 +22,6 @@ use std::process::Command;
 use std::env;
 use std::process::exit;
 use std::io::Stdin;
-use std::sync::Arc;
 use std::io::StdoutLock;
 use std::borrow::Borrow;
 use std::result::Result as RResult;
@@ -48,7 +47,6 @@ use libimagerror::trace::*;
 use libimagerror::io::ToExitCode;
 use libimagstore::store::Store;
 use libimagstore::storeid::StoreId;
-use libimagstore::file_abstraction::InMemoryFileAbstraction;
 use libimagutil::debug_result::DebugResult;
 use spec::CliSpec;
 use atty;
@@ -143,9 +141,7 @@ impl<'a> Runtime<'a> {
         trace!("Config      = {:#?}", config);
 
         let store_result = if cli_app.use_inmemory_fs() {
-            Store::new_with_backend(storepath,
-                                    &config,
-                                    Arc::new(InMemoryFileAbstraction::default()))
+            Store::new_inmemory(storepath, &config)
         } else {
             Store::new(storepath, &config)
         };
@@ -418,7 +414,7 @@ impl<'a> Runtime<'a> {
                     trace!("Got IDs = {}", buf);
                     buf.lines()
                         .map(PathBuf::from)
-                        .map(|id| StoreId::new_baseless(id).map_err(Error::from))
+                        .map(|id| StoreId::new(id).map_err(Error::from))
                         .collect()
                 })
         } else {
diff --git a/lib/core/libimagstore/src/file_abstraction/fs.rs b/lib/core/libimagstore/src/file_abstraction/fs.rs
index f68d2aa1..f6264337 100644
--- a/lib/core/libimagstore/src/file_abstraction/fs.rs
+++ b/lib/core/libimagstore/src/file_abstraction/fs.rs
@@ -28,7 +28,7 @@ use super::FileAbstraction;
 use super::FileAbstractionInstance;
 use super::Drain;
 use store::Entry;
-use storeid::StoreId;
+use storeid::StoreIdWithBase;
 use file_abstraction::iter::PathIterator;
 use file_abstraction::iter::PathIterBuilder;
 
@@ -45,7 +45,7 @@ impl FileAbstractionInstance for FSFileAbstractionInstance {
     /**
      * Get the content behind this file
      */
-    fn get_file_content(&mut self, id: StoreId) -> Result<Option<Entry>> {
+    fn get_file_content<'a>(&mut self, id: StoreIdWithBase<'a>) -> Result<Option<Entry>> {
         debug!("Getting lazy file: {:?}", self);
 
         let mut file = match open_file(&self.0) {
@@ -153,18 +153,18 @@ impl FileAbstraction for FSFileAbstraction {
         })
     }
 
-    fn pathes_recursively(&self,
+    fn pathes_recursively<'a>(&self,
                           basepath: PathBuf,
-                          storepath: PathBuf,
+                          storepath: &'a PathBuf,
                           backend: Arc<FileAbstraction>)
-        -> Result<PathIterator>
+        -> Result<PathIterator<'a>>
     {
         trace!("Building PathIterator object");
         Ok(PathIterator::new(Box::new(WalkDirPathIterBuilder { basepath }), storepath, backend))
     }
 }
 
-pub(crate) struct WalkDirPathIterBuilder {
+pub struct WalkDirPathIterBuilder {
     basepath: PathBuf
 }
 
diff --git a/lib/core/libimagstore/src/file_abstraction/inmemory.rs b/lib/core/libimagstore/src/file_abstraction/inmemory.rs
index 292aea15..43dddb0c 100644
--- a/lib/core/libimagstore/src/file_abstraction/inmemory.rs
+++ b/lib/core/libimagstore/src/file_abstraction/inmemory.rs
@@ -33,7 +33,7 @@ use super::FileAbstraction;
 use super::FileAbstractionInstance;
 use super::Drain;
 use store::Entry;
-use storeid::StoreId;
+use storeid::StoreIdWithBase;
 use file_abstraction::iter::PathIterator;
 use file_abstraction::iter::PathIterBuilder;
 
@@ -64,7 +64,7 @@ impl FileAbstractionInstance for InMemoryFileAbstractionInstance {
     /**
      * Get the mutable file behind a InMemoryFileAbstraction object
      */
-    fn get_file_content(&mut self, _: StoreId) -> Result<Option<Entry>> {
+    fn get_file_content(&mut self, _: StoreIdWithBase<'_>) -> Result<Option<Entry>> {
         debug!("Getting lazy file: {:?}", self);
 
         self.fs_abstraction
@@ -187,7 +187,7 @@ impl FileAbstraction for InMemoryFileAbstraction {
         Ok(())
     }
 
-    fn pathes_recursively(&self, _basepath: PathBuf, storepath: PathBuf, backend: Arc<FileAbstraction>) -> Result<PathIterator> {
+    fn pathes_recursively<'a>(&self, _basepath: PathBuf, storepath: &'a PathBuf, backend: Arc<FileAbstraction>) -> Result<PathIterator<'a>> {
         trace!("Building PathIterator object (inmemory implementation)");
         let keys : Vec<PathBuf> = self
             .backend()
@@ -203,7 +203,7 @@ impl FileAbstraction for InMemoryFileAbstraction {
     }
 }
 
-pub(crate) struct InMemPathIterBuilder(Vec<PathBuf>);
+pub struct InMemPathIterBuilder(Vec<PathBuf>);
 
 impl PathIterBuilder for InMemPathIterBuilder {
     fn build_iter(&self) -> Box<Iterator<Item = Result<PathBuf>>> {
diff --git a/lib/core/libimagstore/src/file_abstraction/iter.rs b/lib/core/libimagstore/src/file_abstraction/iter.rs
index 9df59a2f..2eda4c27 100644
--- a/lib/core/libimagstore/src/file_abstraction/iter.rs
+++ b/lib/core/libimagstore/src/file_abstraction/iter.rs
@@ -22,11 +22,11 @@ use std::sync::Arc;
 
 use failure::Fallible as Result;
 
-use storeid::StoreId;
+use storeid::StoreIdWithBase;
 use file_abstraction::FileAbstraction;
 
 /// See documentation for PathIterator
-pub trait PathIterBuilder {
+pub(crate) trait PathIterBuilder {
     fn build_iter(&self) -> Box<Iterator<Item = Result<PathBuf>>>;
     fn in_collection(&mut self, c: &str);
 }
@@ -45,19 +45,19 @@ pub trait PathIterBuilder {
 ///
 /// This means quite a few allocations down the road, as the PathIterator itself is not generic, but
 /// this seems to be the best way to implement this.
-pub struct PathIterator {
+pub(crate) struct PathIterator<'a> {
     iter_builder: Box<PathIterBuilder>,
     iter:         Box<Iterator<Item = Result<PathBuf>>>,
-    storepath:    PathBuf,
+    storepath:    &'a PathBuf,
     backend:      Arc<FileAbstraction>,
 }
 
-impl PathIterator {
+impl<'a> PathIterator<'a> {
 
     pub fn new(iter_builder: Box<PathIterBuilder>,
-               storepath: PathBuf,
+               storepath: &'a PathBuf,
                backend: Arc<FileAbstraction>)
-        -> PathIterator
+        -> PathIterator<'a>
     {
         trace!("Generating iterator object with PathIterBuilder");
         let iter = iter_builder.build_iter();
@@ -71,10 +71,22 @@ impl PathIterator {
         self
     }
 
+    /// Turn iterator into its internals
+    ///
+    /// Used for `Entries::into_storeid_iter()`
+    ///
+    /// # TODO
+    ///
+    /// Revisit whether this can be done in a cleaner way. See commit message for why this is
+    /// needed.
+    pub(crate) fn into_inner(self) -> Box<Iterator<Item = Result<PathBuf>>> {
+        self.iter
+    }
+
 }
 
-impl Iterator for PathIterator {
-    type Item = Result<StoreId>;
+impl<'a> Iterator for PathIterator<'a> {
+    type Item = Result<StoreIdWithBase<'a>>;
 
     fn next(&mut self) -> Option<Self::Item> {
         while let Some(next) = self.iter.next() {
@@ -82,7 +94,7 @@ impl Iterator for PathIterator {
                 Err(e)   => return Some(Err(e)),
                 Ok(next) => match self.backend.is_file(&next) {
                     Err(e)    => return Some(Err(e)),
-                    Ok(true)  => return Some(StoreId::from_full_path(&self.storepath, next)),
+                    Ok(true)  => return Some(StoreIdWithBase::from_full_path(&self.storepath, next)),
                     Ok(false) => { continue },
                 }
             }
diff --git a/lib/core/libimagstore/src/file_abstraction/mod.rs b/lib/core/libimagstore/src/file_abstraction/mod.rs
index d7716a56..9a80293e 100644
--- a/lib/core/libimagstore/src/file_abstraction/mod.rs
+++ b/lib/core/libimagstore/src/file_abstraction/mod.rs
@@ -25,20 +25,16 @@ use std::sync::Arc;
 use failure::Fallible as Result;
 
 use store::Entry;
-use storeid::StoreId;
+use storeid::StoreIdWithBase;
 
-mod fs;
-mod inmemory;
-pub(crate) mod iter;
+pub mod fs;
+pub mod inmemory;
+pub mod iter;
 
-pub use self::fs::FSFileAbstraction;
-pub use self::fs::FSFileAbstractionInstance;
-pub use self::inmemory::InMemoryFileAbstraction;
-pub use self::inmemory::InMemoryFileAbstractionInstance;
 use self::iter::PathIterator;
 
 /// An abstraction trait over filesystem actions
-pub trait FileAbstraction : Debug {
+pub(crate) trait FileAbstraction : Debug {
     fn remove_file(&self, path: &PathBuf) -> Result<()>;
     fn copy(&self, from: &PathBuf, to: &PathBuf) -> Result<()>;
     fn rename(&self, from: &PathBuf, to: &PathBuf) -> Result<()>;
@@ -52,17 +48,17 @@ pub trait FileAbstraction : Debug {
     fn drain(&self) -> Result<Drain>;
     fn fill<'a>(&'a mut self, d: Drain) -> Result<()>;
 
-    fn pathes_recursively(&self, basepath: PathBuf, storepath: PathBuf, backend: Arc<FileAbstraction>) -> Result<PathIterator>;
+    fn pathes_recursively<'a>(&self, basepath: PathBuf, storepath: &'a PathBuf, backend: Arc<FileAbstraction>) -> Result<PathIterator<'a>>;
 }
 
 /// An abstraction trait over actions on files
-pub trait FileAbstractionInstance : Debug {
+pub(crate) trait FileAbstractionInstance : Debug {
 
     /// Get the contents of the FileAbstractionInstance, as Entry object.
     ///
-    /// The `StoreId` is passed because the backend does not know where the Entry lives, but the
+    /// The `StoreIdWithBase` is passed because the backend does not know where the Entry lives, but the
     /// Entry type itself must be constructed with the id.
-    fn get_file_content(&mut self, id: StoreId) -> Result<Option<Entry>>;
+    fn get_file_content<'a>(&mut self, id: StoreIdWithBase<'a>) -> Result<Option<Entry>>;
     fn write_file_content(&mut self, buf: &Entry) -> Result<()>;
 }
 
@@ -101,18 +97,19 @@ mod test {
     use super::FileAbstractionInstance;
     use super::inmemory::InMemoryFileAbstraction;
     use super::inmemory::InMemoryFileAbstractionInstance;
-    use storeid::StoreId;
+    use storeid::StoreIdWithBase;
     use store::Entry;
 
     #[test]
     fn lazy_file() {
+        let store_path = PathBuf::from("/");
         let fs = InMemoryFileAbstraction::default();
 
         let mut path = PathBuf::from("tests");
         path.set_file_name("test1");
         let mut lf = InMemoryFileAbstractionInstance::new(fs.backend().clone(), path.clone());
 
-        let loca = StoreId::new_baseless(path).unwrap();
+        let loca = StoreIdWithBase::new(&store_path, path);
         let file = Entry::from_str(loca.clone(), &format!(r#"---
 [imag]
 version = "{}"
@@ -126,13 +123,14 @@ Hello World"#, env!("CARGO_PKG_VERSION"))).unwrap();
 
     #[test]
     fn lazy_file_multiline() {
+        let store_path = PathBuf::from("/");
         let fs = InMemoryFileAbstraction::default();
 
         let mut path = PathBuf::from("tests");
         path.set_file_name("test1");
         let mut lf = InMemoryFileAbstractionInstance::new(fs.backend().clone(), path.clone());
 
-        let loca = StoreId::new_baseless(path).unwrap();
+        let loca = StoreIdWithBase::new(&store_path, path);
         let file = Entry::from_str(loca.clone(), &format!(r#"---
 [imag]
 version = "{}"
@@ -147,13 +145,14 @@ baz"#, env!("CARGO_PKG_VERSION"))).unwrap();
 
     #[test]
     fn lazy_file_multiline_trailing_newlines() {
+        let store_path = PathBuf::from("/");
         let fs = InMemoryFileAbstraction::default();
 
         let mut path = PathBuf::from("tests");
         path.set_file_name("test1");
         let mut lf = InMemoryFileAbstractionInstance::new(fs.backend().clone(), path.clone());
 
-        let loca = StoreId::new_baseless(path).unwrap();
+        let loca = StoreIdWithBase::new(&store_path, path);
         let file = Entry::from_str(loca.clone(), &format!(r#"---
 [imag]
 version = "{}"
diff --git a/lib/core/libimagstore/src/iter.rs b/lib/core/libimagstore/src/iter.rs
index 1639b02c..2e895b78 100644
--- a/lib/core/libimagstore/src/iter.rs
+++ b/lib/core/libimagstore/src/iter.rs
@@ -167,11 +167,11 @@ use failure::Fallible as Result;
 ///
 /// Functionality to exclude subdirectories is not possible with the current implementation and has
 /// to be done during iteration, with filtering (as usual).
-pub struct Entries<'a>(PathIterator, &'a Store);
+pub struct Entries<'a>(PathIterator<'a>, &'a Store);
 
 impl<'a> Entries<'a> {
 
-    pub(crate) fn new(pi: PathIterator, store: &'a Store) -> Self {
+    pub(crate) fn new(pi: PathIterator<'a>, store: &'a Store) -> Self {
         Entries(pi, store)
     }
 
@@ -179,29 +179,38 @@ impl<'a> Entries<'a> {
         Entries(self.0.in_collection(c), self.1)
     }
 
-    pub fn without_store(self) -> StoreIdIterator {
-        StoreIdIterator::new(Box::new(self.0))
+    /// Turn `Entries` iterator into generic `StoreIdIterator`
+    ///
+    /// # TODO
+    ///
+    /// Revisit whether this can be done in a cleaner way. See commit message for why this is
+    /// needed.
+    pub fn into_storeid_iter(self) -> StoreIdIterator {
+        let iter = self.0
+            .into_inner()
+            .map(|r| r.and_then(StoreId::new));
+        StoreIdIterator::new(Box::new(iter))
     }
 
     /// Transform the iterator into a StoreDeleteIterator
     ///
     /// This immitates the API from `libimagstore::iter`.
     pub fn into_delete_iter(self) -> StoreDeleteIterator<'a> {
-        StoreDeleteIterator::new(Box::new(self.0), self.1)
+        StoreDeleteIterator::new(Box::new(self.0.map(|r| r.map(|id| id.without_base()))), self.1)
     }
 
     /// Transform the iterator into a StoreGetIterator
     ///
     /// This immitates the API from `libimagstore::iter`.
     pub fn into_get_iter(self) -> StoreGetIterator<'a> {
-        StoreGetIterator::new(Box::new(self.0), self.1)
+        StoreGetIterator::new(Box::new(self.0.map(|r| r.map(|id| id.without_base()))), self.1)
     }
 
     /// Transform the iterator into a StoreRetrieveIterator
     ///
     /// This immitates the API from `libimagstore::iter`.
     pub fn into_retrieve_iter(self) -> StoreRetrieveIterator<'a> {
-        StoreRetrieveIterator::new(Box::new(self.0), self.1)
+        StoreRetrieveIterator::new(Box::new(self.0.map(|r| r.map(|id| id.without_base()))), self.1)
     }
 
 }
@@ -210,7 +219,7 @@ impl<'a> Iterator for Entries<'a> {
     type Item = Result<StoreId>;
 
     fn next(&mut self) -> Option<Self::Item> {
-        self.0.next()
+        self.0.next().map(|r| r.map(|id| id.without_base()))
     }
 }
 
@@ -227,7 +236,7 @@ mod tests {
 
     use store::Store;
     use storeid::StoreId;
-    use file_abstraction::InMemoryFileAbstraction;
+    use file_abstraction::inmemory::InMemoryFileAbstraction;
     use libimagutil::variants::generate_variants;
 
     pub fn get_store() -> Store {
@@ -244,7 +253,7 @@ mod tests {
             let base = String::from("entry");
             let variants = vec!["coll_1", "coll_2", "coll_3"];
             let modifier = |base: &String, v: &&str| {
-                StoreId::new(Some(store.path().clone()), PathBuf::from(format!("{}/{}", *v, base))).unwrap()
+                StoreId::new(PathBuf::from(format!("{}/{}", *v, base))).unwrap()
             };
 
             generate_variants(&base, variants.iter(), &modifier)
diff --git a/lib/core/libimagstore/src/lib.rs b/lib/core/libimagstore/src/lib.rs
index fe721daa..c3274f6b 100644
--- a/lib/core/libimagstore/src/lib.rs
+++ b/lib/core/libimagstore/src/lib.rs
@@ -58,5 +58,5 @@ pub mod storeid;
 pub mod iter;
 pub mod store;
 mod configuration;
-pub mod file_abstraction;
+mod file_abstraction;
 
diff --git a/lib/core/libimagstore/src/store.rs b/lib/core/libimagstore/src/store.rs
index aa3ae4ba..3cd0bfeb 100644
--- a/lib/core/libimagstore/src/store.rs
+++ b/lib/core/libimagstore/src/store.rs
@@ -43,12 +43,10 @@ use failure::Error;
 
 use storeid::{IntoStoreId, StoreId};
 use iter::Entries;
+use file_abstraction::FileAbstraction;
 use file_abstraction::FileAbstractionInstance;
-
-// We re-export the following things so tests can use them
-pub use file_abstraction::FileAbstraction;
-pub use file_abstraction::FSFileAbstraction;
-pub use file_abstraction::InMemoryFileAbstraction;
+use file_abstraction::fs::FSFileAbstraction;
+use file_abstraction::inmemory::InMemoryFileAbstraction;
 
 use libimagutil::debug_result::*;
 
@@ -64,14 +62,15 @@ enum StoreEntryStatus {
 #[derive(Debug)]
 struct StoreEntry {
     id: StoreId,
+    store_base: PathBuf, // small sacrefice over lifetimes on the Store type
     file: Box<FileAbstractionInstance>,
     status: StoreEntryStatus,
 }
 
 impl StoreEntry {
 
-    fn new(id: StoreId, backend: &Arc<FileAbstraction>) -> Result<StoreEntry> {
-        let pb = id.clone().into_pathbuf()?;
+    fn new(store_base: PathBuf, id: StoreId, backend: &Arc<FileAbstraction>) -> Result<StoreEntry> {
+        let pb = id.clone().with_base(&store_base).into_pathbuf()?;
 
         #[cfg(feature = "fs-lock")]
         {
@@ -82,6 +81,7 @@ impl StoreEntry {
 
         Ok(StoreEntry {
             id,
+            store_base,
             file: backend.new_instance(pb),
             status: StoreEntryStatus::Present,
         })
@@ -95,7 +95,7 @@ impl StoreEntry {
 
     fn get_entry(&mut self) -> Result<Entry> {
         if !self.is_borrowed() {
-            match self.file.get_file_content(self.id.clone())? {
+            match self.file.get_file_content(self.id.clone().with_base(&self.store_base))? {
                 Some(file) => Ok(file),
                 None       => Ok(Entry::new(self.id.clone()))
             }
@@ -170,13 +170,24 @@ impl Store {
         Store::new_with_backend(location, store_config, backend)
     }
 
+    /// Create the store with an in-memory filesystem
+    ///
+    /// # Usage
+    ///
+    /// this is for testing purposes only
+    #[inline]
+    pub fn new_inmemory(location: PathBuf, store_config: &Option<Value>) -> Result<Store> {
+        let backend = Arc::new(InMemoryFileAbstraction::default());
+        Self::new_with_backend(location, store_config, backend)
+    }
+
     /// Create a Store object as descripbed in `Store::new()` documentation, but with an alternative
     /// backend implementation.
     ///
     /// Do not use directly, only for testing purposes.
-    pub fn new_with_backend(location: PathBuf,
-                            store_config: &Option<Value>,
-                            backend: Arc<FileAbstraction>) -> Result<Store> {
+    pub(crate) fn new_with_backend(location: PathBuf,
+                        store_config: &Option<Value>,
+                        backend: Arc<FileAbstraction>) -> Result<Store> {
         use configuration::*;
 
         debug!("Building new Store object");
@@ -218,7 +229,7 @@ impl Store {
     /// On success: FileLockEntry
     ///
     pub fn create<'a, S: IntoStoreId>(&'a self, id: S) -> Result<FileLockEntry<'a>> {
-        let id = id.into_storeid()?.with_base(self.path().clone());
+        let id = id.into_storeid()?;
 
         debug!("Creating id: '{}'", id);
 
@@ -244,7 +255,7 @@ impl Store {
             }
             hsmap.insert(id.clone(), {
                 debug!("Creating: '{}'", id);
-                let mut se = StoreEntry::new(id.clone(), &self.backend)?;
+                let mut se = StoreEntry::new(self.path().clone(), id.clone(), &self.backend)?;
                 se.status = StoreEntryStatus::Borrowed;
                 se
             });
@@ -266,14 +277,14 @@ impl Store {
     /// On success: FileLockEntry
     ///
     pub fn retrieve<'a, S: IntoStoreId>(&'a self, id: S) -> Result<FileLockEntry<'a>> {
-        let id = id.into_storeid()?.with_base(self.path().clone());
+        let id = id.into_storeid()?;
         debug!("Retrieving id: '{}'", id);
         let entry = self
             .entries
             .write()
             .map_err(|_| Error::from(EM::LockError))
             .and_then(|mut es| {
-                let new_se = StoreEntry::new(id.clone(), &self.backend)?;
+                let new_se = StoreEntry::new(self.path().clone(), id.clone(), &self.backend)?;
                 let se = es.entry(id.clone()).or_insert(new_se);
                 let entry = se.get_entry();
                 se.status = StoreEntryStatus::Borrowed;
@@ -296,7 +307,7 @@ impl Store {
     ///  - Errors Store::retrieve() might return
     ///
     pub fn get<'a, S: IntoStoreId + Clone>(&'a self, id: S) -> Result<Option<FileLockEntry<'a>>> {
-        let id = id.into_storeid()?.with_base(self.path().clone());
+        let id = id.into_storeid()?;
 
         debug!("Getting id: '{}'", id);
 
@@ -409,7 +420,7 @@ impl Store {
     /// On success: Entry
     ///
     pub fn get_copy<S: IntoStoreId>(&self, id: S) -> Result<Entry> {
-        let id = id.into_storeid()?.with_base(self.path().clone());
+        let id = id.into_storeid()?;
         debug!("Retrieving copy of '{}'", id);
         let entries = self.entries.write()
             .map_err(|_| Error::from(EM::LockError))
@@ -422,7 +433,7 @@ impl Store {
                 .map_err(Error::from)
         }
 
-        StoreEntry::new(id, &self.backend)?.get_entry()
+        StoreEntry::new(self.path().clone(), id, &self.backend)?.get_entry()
     }
 
     /// Delete an entry and the corrosponding file on disk
@@ -432,7 +443,7 @@ impl Store {
     /// On success: ()
     ///
     pub fn delete<S: IntoStoreId>(&self, id: S) -> Result<()> {
-        let id = id.into_storeid()?.with_base(self.path().clone());
+        let id = id.into_storeid()?;
 
         debug!("Deleting id: '{}'", id);
 
@@ -440,7 +451,7 @@ impl Store {
         // StoreId::exists(), a PathBuf object gets allocated. So we simply get a
         // PathBuf here, check whether it is there and if it is, we can re-use it to
         // delete the filesystem file.
-        let pb = id.clone().into_pathbuf()?;
+        let pb = id.clone().with_base(self.path()).into_pathbuf()?;
 
         {
             let mut entries = self
@@ -507,7 +518,6 @@ impl Store {
     fn save_to_other_location(&self, entry: &FileLockEntry, new_id: StoreId, remove_old: bool)
         -> Result<()>
     {
-        let new_id = new_id.with_base(self.path().clone());
         let hsmap = self
             .entries
             .write()
@@ -522,8 +532,8 @@ impl Store {
 
         let old_id = entry.get_location().clone();
 
-        let old_id_as_path = old_id.clone().with_base(self.path().clone()).into_pathbuf()?;
-        let new_id_as_path = new_id.clone().with_base(self.path().clone()).into_pathbuf()?;
+        let old_id_as_path = old_id.clone().with_base(self.path()).into_pathbuf()?;
+        let new_id_as_path = new_id.clone().with_base(self.path()).into_pathbuf()?;
         self.backend
             .copy(&old_id_as_path, &new_id_as_path)
             .and_then(|_| if remove_old {
@@ -571,9 +581,6 @@ impl Store {
     /// So the link is _partly dangling_, so to say.
     ///
     pub fn move_by_id(&self, old_id: StoreId, new_id: StoreId) -> Result<()> {
-        let new_id = new_id.with_base(self.path().clone());
-        let old_id = old_id.with_base(self.path().clone());
-
         debug!("Moving '{}' to '{}'", old_id, new_id);
 
         {
@@ -594,8 +601,8 @@ impl Store {
 
             debug!("Old id is not yet borrowed");
 
-            let old_id_pb = old_id.clone().with_base(self.path().clone()).into_pathbuf()?;
-            let new_id_pb = new_id.clone().with_base(self.path().clone()).into_pathbuf()?;
+            let old_id_pb = old_id.clone().with_base(self.path()).into_pathbuf()?;
+            let new_id_pb = new_id.clone().with_base(self.path()).into_pathbuf()?;
 
             if self.backend.exists(&new_id_pb)? {
                 return Err(format_err!("Entry already exists: {}", new_id));
@@ -618,8 +625,8 @@ impl Store {
             assert!(hsmap
                     .remove(&old_id)
                     .and_then(|mut entry| {
-                        entry.id = new_id.clone();
-                        hsmap.insert(new_id.clone(), entry)
+                        entry.id = new_id.clone().into();
+                        hsmap.insert(new_id.clone().into(), entry)
                     }).is_none())
         }
 
@@ -631,7 +638,7 @@ impl Store {
     pub fn entries<'a>(&'a self) -> Result<Entries<'a>> {
         trace!("Building 'Entries' iterator");
         self.backend
-            .pathes_recursively(self.path().clone(), self.path().clone(), self.backend.clone())
+            .pathes_recursively(self.path().clone(), self.path(), self.backend.clone())
             .map(|i| Entries::new(i, self))
     }
 
@@ -645,7 +652,7 @@ impl Store {
                 .context(format_err!("CreateCallError: {}", id));
 
         let backend_has_entry = |id: StoreId|
-            self.backend.exists(&id.with_base(self.path().to_path_buf()).into_pathbuf()?);
+            self.backend.exists(&id.with_base(self.path()).into_pathbuf()?);
 
         Ok(cache_has_entry(&id)? || backend_has_entry(id)?)
     }
@@ -1000,7 +1007,7 @@ Hai
         setup_logging();
 
         debug!("{}", TEST_ENTRY);
-        let entry = Entry::from_str(StoreId::new_baseless(PathBuf::from("test/foo~1.3")).unwrap(),
+        let entry = Entry::from_str(StoreId::new(PathBuf::from("test/foo~1.3")).unwrap(),
                                     TEST_ENTRY).unwrap();
 
         assert_eq!(entry.content, "Hai");
@@ -1014,7 +1021,7 @@ Hai
         setup_logging();
 
         debug!("{}", TEST_ENTRY);
-        let entry = Entry::from_str(StoreId::new_baseless(PathBuf::from("test/foo~1.3")).unwrap(),
+        let entry = Entry::from_str(StoreId::new(PathBuf::from("test/foo~1.3")).unwrap(),
                                     TEST_ENTRY).unwrap();
         let string = entry.to_str().unwrap();
 
@@ -1029,7 +1036,7 @@ Hai
         setup_logging();
 
         debug!("{}", TEST_ENTRY_TNL);
-        let entry = Entry::from_str(StoreId::new_baseless(PathBuf::from("test/foo~1.3")).unwrap(),
+        let entry = Entry::from_str(StoreId::new(PathBuf::from("test/foo~1.3")).unwrap(),
                                     TEST_ENTRY_TNL).unwrap();
         let string = entry.to_str().unwrap();
 
@@ -1049,9 +1056,9 @@ mod store_tests {
     }
 
     use super::Store;
-    use file_abstraction::InMemoryFileAbstraction;
 
     pub fn get_store() -> Store {
+        use file_abstraction::inmemory::InMemoryFileAbstraction;
         let backend = Arc::new(InMemoryFileAbstraction::default());
         Store::new_with_backend(PathBuf::from("/"), &None, backend).unwrap()
     }
@@ -1072,7 +1079,7 @@ mod store_tests {
             let s = format!("test-{}", n);
             let entry = store.create(PathBuf::from(s.clone())).unwrap();
             assert!(entry.verify().is_ok());
-            let loc = entry.get_location().clone().into_pathbuf().unwrap();
+            let loc = entry.get_location().clone().with_base(store.path()).into_pathbuf().unwrap();
             assert!(loc.starts_with("/"));
             assert!(loc.ends_with(s));
         }
@@ -1093,7 +1100,7 @@ mod store_tests {
 
             assert!(entry.verify().is_ok());
 
-            let loc = entry.get_location().clone().into_pathbuf().unwrap();
+            let loc = entry.get_location().clone().with_base(store.path()).into_pathbuf().unwrap();
 
             assert!(loc.starts_with("/"));
             assert!(loc.ends_with(s));
@@ -1125,7 +1132,7 @@ mod store_tests {
                 .ok()
                 .map(|entry| {
                     assert!(entry.verify().is_ok());
-                    let loc = entry.get_location().clone().into_pathbuf().unwrap();
+                    let loc = entry.get_location().clone().with_base(store.path()).into_pathbuf().unwrap();
                     assert!(loc.starts_with("/"));
                     assert!(loc.ends_with(s));
                 });
@@ -1139,12 +1146,10 @@ mod store_tests {
         let store = get_store();
 
         for n in 1..100 {
-            let pb = StoreId::new_baseless(PathBuf::from(format!("test-{}", n))).unwrap();
+            let pb = StoreId::new(PathBuf::from(format!("test-{}", n))).unwrap();
 
             assert!(store.entries.read().unwrap().get(&pb).is_none());
             assert!(store.create(pb.clone()).is_ok());
-
-            let pb = pb.with_base(store.path().clone());
             assert!(store.entries.read().unwrap().get(&pb).is_some());
         }
     }
@@ -1156,12 +1161,10 @@ mod store_tests {
         let store = get_store();
 
         for n in 1..100 {
-            let pb = StoreId::new_baseless(PathBuf::from(format!("test-{}", n))).unwrap();
+            let pb = StoreId::new(PathBuf::from(format!("test-{}", n))).unwrap();
 
             assert!(store.entries.read().unwrap().get(&pb).is_none());
             assert!(store.retrieve(pb.clone()).is_ok());
-
-            let pb = pb.with_base(store.path().clone());
             assert!(store.entries.read().unwrap().get(&pb).is_some());
         }
     }
@@ -1199,8 +1202,8 @@ mod store_tests {
 
         for n in 1..100 {
             if n % 2 == 0 { // every second
-                let id    = StoreId::new_baseless(PathBuf::from(format!("t-{}", n))).unwrap();
-                let id_mv = StoreId::new_baseless(PathBuf::from(format!("t-{}", n - 1))).unwrap();
+                let id    = StoreId::new(PathBuf::from(format!("t-{}", n))).unwrap();
+                let id_mv = StoreId::new(PathBuf::from(format!("t-{}", n - 1))).unwrap();
 
                 {
                     assert!(store.entries.read().unwrap().get(&id).is_none());
@@ -1211,16 +1214,14 @@ mod store_tests {
                 }
 
                 {
-                    let id_with_base = id.clone().with_base(store.path().clone());
-                    assert!(store.entries.read().unwrap().get(&id_with_base).is_some());
+                    assert!(store.entries.read().unwrap().get(&id).is_some());
                 }
 
                 let r = store.move_by_id(id.clone(), id_mv.clone());
                 assert!(r.map_err(|e| debug!("ERROR: {:?}", e)).is_ok());
 
                 {
-                    let id_mv_with_base = id_mv.clone().with_base(store.path().clone());
-                    assert!(store.entries.read().unwrap().get(&id_mv_with_base).is_some());
+                    assert!(store.entries.read().unwrap().get(&id_mv).is_some());
                 }
 
                 let res = store.get(id.clone());
diff --git a/lib/core/libimagstore/src/storeid.rs b/lib/core/libimagstore/src/storeid.rs
index 17d9b67d..d0a7d396 100644
--- a/lib/core/libimagstore/src/storeid.rs
+++ b/lib/core/libimagstore/src/storeid.rs
@@ -43,87 +43,28 @@ use iter::retrieve::StoreRetrieveIterator;
 /// A StoreId object is a unique identifier for one entry in the store which might be present or
 /// not.
 ///
-#[derive(Debug, Clone, Hash, Eq, PartialOrd, Ord)]
-pub struct StoreId {
-    base: Option<PathBuf>,
-    id:   PathBuf,
-}
-
-impl PartialEq for StoreId {
-    fn eq(&self, other: &StoreId) -> bool {
-        self.id == other.id
-    }
-}
+#[derive(Debug, Clone, Hash, PartialEq, Eq, PartialOrd, Ord)]
+pub struct StoreId(PathBuf);
 
 impl StoreId {
 
-    pub fn new(base: Option<PathBuf>, id: PathBuf) -> Result<StoreId> {
-        StoreId::new_baseless(id).map(|mut sid| { sid.base = base; sid })
-    }
-
-    /// Try to create a StoreId object from a filesystem-absolute path.
-    ///
-    /// Automatically creates a StoreId object which has a `base` set to `store_part` if stripping
-    /// the `store_part` from the `full_path` succeeded.
-    pub fn from_full_path<D>(store_part: &PathBuf, full_path: D) -> Result<StoreId>
-        where D: Deref<Target = Path>
-    {
-        let p = full_path
-            .strip_prefix(store_part)
-            .map_err(Error::from)
-            .context(err_msg("Error building Store Id from full path"))?;
-        StoreId::new(Some(store_part.clone()), PathBuf::from(p))
-    }
-
-    pub fn new_baseless(id: PathBuf) -> Result<StoreId> {
+    pub fn new(id: PathBuf) -> Result<StoreId> {
         debug!("Trying to get a new baseless id from: {:?}", id);
         if id.is_absolute() {
             debug!("Error: Id is absolute!");
             Err(format_err!("Store Id local part is absolute: {}", id.display()))
         } else {
             debug!("Building Storeid object baseless");
-            Ok(StoreId {
-                base: None,
-                id
-            })
+            Ok(StoreId(id))
         }
     }
 
-    pub fn without_base(mut self) -> StoreId {
-        self.base = None;
-        self
-    }
-
-    pub fn with_base(mut self, base: PathBuf) -> Self {
-        self.base = Some(base);
-        self
-    }
-
-    /// Transform the StoreId object into a PathBuf, error if the base of the StoreId is not
-    /// specified.
-    pub fn into_pathbuf(mut self) -> Result<PathBuf> {
-        let base = self.base.take();
-        let mut base = base.ok_or_else(|| {
-            format_err!("Store Id has no base: {:?}", self.id.display().to_string())
-        })?;
-        base.push(self.id);
-        Ok(base)
-    }
-
-    /// Check whether the StoreId exists (as in whether the file exists)
-    ///
-    /// # Warning
-    ///
-    /// Should be considered deprecated
-    pub fn exists(&self) -> Result<bool> {
-        self.clone().into_pathbuf().map(|pb| pb.exists())
+    pub(crate) fn with_base<'a>(self, base: &'a PathBuf) -> StoreIdWithBase<'a> {
+        StoreIdWithBase(base, self.0)
     }
 
     pub fn to_str(&self) -> Result<String> {
-        match self.base.as_ref() {
-            None           => Ok(self.id.display().to_string()),
-            Some(ref base) => Ok(format!("{}/{}", base.display(), self.id.display())),
-        }
+        Ok(self.0.display().to_string())
     }
 
     /// Helper function for creating a displayable String from StoreId
@@ -145,12 +86,12 @@ impl StoreId {
     /// Can be used to check whether a StoreId points to an entry in a specific collection of
     /// StoreIds.
     pub fn components(&self) -> Components {
-        self.id.components()
+        self.0.components()
     }
 
     /// Get the _local_ part of a StoreId object, as in "the part from the store root to the entry".
     pub fn local(&self) -> &PathBuf {
-        &self.id
+        &self.0
     }
 
     /// Check whether a StoreId points to an entry in a specific collection.
@@ -166,7 +107,7 @@ impl StoreId {
     pub fn is_in_collection<S: AsRef<str>, V: AsRef<[S]>>(&self, colls: &V) -> bool {
         use std::path::Component;
 
-        self.id
+        self.0
             .components()
             .zip(colls.as_ref().iter())
             .all(|(component, pred_coll)| match component {
@@ -179,7 +120,7 @@ impl StoreId {
     }
 
     pub fn local_push<P: AsRef<Path>>(&mut self, path: P) {
-        self.id.push(path)
+        self.0.push(path)
     }
 
 }
@@ -187,7 +128,7 @@ impl StoreId {
 impl Display for StoreId {
 
     fn fmt(&self, fmt: &mut Formatter) -> RResult<(), FmtError> {
-        write!(fmt, "{}", self.id.display())
+        write!(fmt, "{}", self.0.display())
     }
 
 }
@@ -206,10 +147,65 @@ impl IntoStoreId for StoreId {
 
 impl IntoStoreId for PathBuf {
     fn into_storeid(self) -> Result<StoreId> {
-        StoreId::new_baseless(self)
+        StoreId::new(self)
     }
 }
 
+#[derive(Debug, Clone, Hash, PartialEq, Eq, PartialOrd, Ord)]
+pub(crate) struct StoreIdWithBase<'a>(&'a PathBuf, PathBuf);
+
+impl<'a> StoreIdWithBase<'a> {
+    #[cfg(test)]
+    pub(crate) fn new(base: &'a PathBuf, path: PathBuf) -> Self {
+        StoreIdWithBase(base, path)
+    }
+
+    pub(crate) fn without_base(self) -> StoreId {
+        StoreId(self.1)
+    }
+
+    /// Transform the StoreId object into a PathBuf, error if the base of the StoreId is not
+    /// specified.
+    pub(crate) fn into_pathbuf(self) -> Result<PathBuf> {
+        let mut base = self.0.clone();
+        base.push(self.1);
+        Ok(base)
+    }
+
+    /// Try to create a StoreId object from a filesystem-absolute path.
+    ///
+    /// Automatically creates a StoreId object which has a `base` set to `store_part` if stripping
+    /// the `store_part` from the `full_path` succeeded.
+    pub(crate) fn from_full_path<D>(store_part: &'a PathBuf, full_path: D) -> Result<StoreIdWithBase<'a>>
+        where D: Deref<Target = Path>
+    {
+        let p = full_path
+            .strip_prefix(store_part)
+            .map_err(Error::from)
+            .context(err_msg("Error building Store Id from full path"))?;
+        Ok(StoreIdWithBase(store_part, PathBuf::from(p)))
+    }
+}
+
+impl<'a> IntoStoreId for StoreIdWithBase<'a> {
+    fn into_storeid(self) -> Result<StoreId> {
+        Ok(StoreId(self.1))
+    }
+}
+
+impl<'a> Into<StoreId> for StoreIdWithBase<'a> {
+    fn into(self) -> StoreId {
+        StoreId(self.1)
+    }
+}
+
+impl<'a> Display for StoreIdWithBase<'a> {
+    fn fmt(&self, fmt: &mut Formatter) -> RResult<(), FmtError> {
+        write!(fmt, "{}/{}", self.0.display(), self.1.display())
+    }
+}
+
+
 #[macro_export]
 macro_rules! module_entry_path_mod {
     ($name:expr) => (
@@ -249,7 +245,7 @@ macro_rules! module_entry_path_mod {
 
             impl $crate::storeid::IntoStoreId for ModuleEntryPath {
                 fn into_storeid(self) -> Result<$crate::storeid::StoreId> {
-                    StoreId::new(None, self.0)
+                    StoreId::new(self.0)
                 }
             }
         }
@@ -313,7 +309,7 @@ impl<'a> StoreIdIteratorWithStore<'a> {
         StoreIdIteratorWithStore(StoreIdIterator::new(iter), store)
     }
 
-    pub fn without_store(self) -> StoreIdIterator {
+    pub fn into_storeid_iter(self) -> StoreIdIterator {
         self.0
     }
 
@@ -352,9 +348,6 @@ impl<'a> StoreIdIteratorWithStore<'a> {
 
 #[cfg(test)]
 mod test {
-    use std::path::PathBuf;
-
-    use storeid::StoreId;
     use storeid::IntoStoreId;
 
     module_entry_path_mod!("test");
@@ -366,95 +359,6 @@ mod test {
         assert_eq!(p.into_storeid().unwrap().to_str().unwrap(), "test/test");
     }
 
-    #[test]
-    fn test_baseless_path() {
-        let id = StoreId::new_baseless(PathBuf::from("test"));
-        assert!(id.is_ok());
-        assert_eq!(id.unwrap(), StoreId {
-            base: None,
-            id: PathBuf::from("test")
-        });
-    }
-
-    #[test]
-    fn test_base_path() {
-        let id = StoreId::from_full_path(&PathBuf::from("/tmp/"), PathBuf::from("/tmp/test"));
-        assert!(id.is_ok());
-        assert_eq!(id.unwrap(), StoreId {
-            base: Some(PathBuf::from("/tmp/")),
-            id: PathBuf::from("test")
-        });
-    }
-
-    #[test]
-    fn test_adding_base_to_baseless_path() {
-        let id = StoreId::new_baseless(PathBuf::from("test"));
-
-        assert!(id.is_ok());
-        let id = id.unwrap();
-
-        assert_eq!(id, StoreId { base: None, id: PathBuf::from("test") });
-
-        let id = id.with_base(PathBuf::from("/tmp/"));
-        assert_eq!(id, StoreId {
-            base: Some(PathBuf::from("/tmp/")),
-            id: PathBuf::from("test")
-        });
-    }
-
-    #[test]
-    fn test_removing_base_from_base_path() {
-        let id = StoreId::from_full_path(&PathBuf::from("/tmp/"), PathBuf::from("/tmp/test"));
-
-        assert!(id.is_ok());
-        let id = id.unwrap();
-
-        assert_eq!(id, StoreId {
-            base: Some(PathBuf::from("/tmp/")),
-            id: PathBuf::from("test")
-        });
-
-        let id = id.without_base();
-        assert_eq!(id, StoreId {
-            base: None,
-            id: PathBuf::from("test")
-        });
-    }
-
-    #[test]
-    fn test_baseless_into_pathbuf_is_err() {
-        let id = StoreId::new_baseless(PathBuf::from("test"));
-        assert!(id.is_ok());
-        assert!(id.unwrap().into_pathbuf().is_err());
-    }
-
-    #[test]
-    fn test_baseless_into_pathbuf_is_storeidhasnobaseerror() {
-        let id = StoreId::new_baseless(PathBuf::from("test"));
-        assert!(id.is_ok());
-
-        let pb = id.unwrap().into_pathbuf();
-        assert!(pb.is_err());
-    }
-
-    #[test]
-    fn test_basefull_into_pathbuf_is_ok() {
-        let id = StoreId::from_full_path(&PathBuf::from("/tmp/"), PathBuf::from("/tmp/test"));
-        assert!(id.is_ok());
-        assert!(id.unwrap().into_pathbuf().is_ok());
-    }
-
-    #[test]
-    fn test_basefull_into_pathbuf_is_correct() {
-        let id = StoreId::from_full_path(&PathBuf::from("/tmp/"), PathBuf::from("/tmp/test"));
-        assert!(id.is_ok());
-
-        let pb = id.unwrap().into_pathbuf();
-        assert!(pb.is_ok());
-
-        assert_eq!(pb.unwrap(), PathBuf::from("/tmp/test"));
-    }
-
     #[test]
     fn storeid_in_collection() {
         let p = module_path::ModuleEntryPath::new("1/2/3/4/5/6/7/8/9/0").into_storeid().unwrap();
diff --git a/lib/domain/libimagcontact/src/store.rs b/lib/domain/libimagcontact/src/store.rs
index b39d4e04..aab35ab4 100644
--- a/lib/domain/libimagcontact/src/store.rs
+++ b/lib/domain/libimagcontact/src/store.rs
@@ -29,9 +29,9 @@ use failure::Fallible as Result;
 
 use libimagstore::storeid::IntoStoreId;
 use libimagstore::storeid::StoreId;
+use libimagstore::iter::Entries;
 use libimagstore::store::Store;
 use libimagstore::store::FileLockEntry;
-use libimagstore::storeid::StoreIdIterator;
 use libimagentryutil::isa::Is;
 
 use contact::IsContact;
@@ -51,7 +51,7 @@ pub trait ContactStore<'a> {
 
     // getting
 
-    fn all_contacts(&'a self) -> Result<StoreIdIterator>;
+    fn all_contacts(&'a self) -> Result<Entries<'a>>;
 }
 
 /// The extension for the Store to work with contacts
@@ -76,8 +76,8 @@ impl<'a> ContactStore<'a> for Store {
         postprocess_fetched_entry(self.retrieve(sid)?, value)
     }
 
-    fn all_contacts(&'a self) -> Result<StoreIdIterator> {
-        self.entries().map(|iter| iter.in_collection("contact").without_store())
+    fn all_contacts(&'a self) -> Result<Entries<'a>> {
+        self.entries().map(|ent| ent.in_collection("contact"))
     }
 
 }
diff --git a/lib/domain/libimagdiary/src/diary.rs b/lib/domain/libimagdiary/src/diary.rs
index 5c500ce0..e61902eb 100644
--- a/lib/domain/libimagdiary/src/diary.rs
+++ b/lib/domain/libimagdiary/src/diary.rs
@@ -95,7 +95,7 @@ impl Diary for Store {
     fn entries(&self, diary_name: &str) -> Result<DiaryEntryIterator> {
         debug!("Building iterator for module 'diary' with diary name = '{}'", diary_name);
         Store::entries(self)
-            .map(|iter| DiaryEntryIterator::new(String::from(diary_name), iter.without_store()))
+            .map(|iter| DiaryEntryIterator::new(String::from(diary_name), iter.into_storeid_iter()))
     }
 
     /// get the id of the youngest entry
@@ -151,7 +151,7 @@ impl Diary for Store {
     /// Get all diary names
     fn diary_names(&self) -> Result<DiaryNameIterator> {
         self.entries()
-            .map(|it| DiaryNameIterator::new(it.without_store()))
+            .map(|it| DiaryNameIterator::new(it.into_storeid_iter()))
             .map_err(Error::from)
     }
 
diff --git a/lib/domain/libimaghabit/src/iter.rs b/lib/domain/libimaghabit/src/iter.rs
index 8a1e5a75..8cdb7c70 100644
--- a/lib/domain/libimaghabit/src/iter.rs
+++ b/lib/domain/libimaghabit/src/iter.rs
@@ -52,7 +52,7 @@ impl From<StoreIdIterator> for HabitTemplateStoreIdIterator {
 
 impl<'a> From<StoreIdIteratorWithStore<'a>> for HabitTemplateStoreIdIterator {
     fn from(sii: StoreIdIteratorWithStore<'a>) -> Self {
-        HabitTemplateStoreIdIterator(sii.without_store())
+        HabitTemplateStoreIdIterator(sii.into_storeid_iter())
     }
 }
 
@@ -88,7 +88,7 @@ impl From<StoreIdIterator> for HabitInstanceStoreIdIterator {
 
 impl<'a> From<StoreIdIteratorWithStore<'a>> for HabitInstanceStoreIdIterator {
     fn from(sii: StoreIdIteratorWithStore<'a>) -> Self {
-        HabitInstanceStoreIdIterator(sii.without_store())
+        HabitInstanceStoreIdIterator(sii.into_storeid_iter())
     }
 }
 
diff --git a/lib/domain/libimaghabit/src/store.rs b/lib/domain/libimaghabit/src/store.rs
index 197a1b64..5fbcf0cd 100644
--- a/lib/domain/libimaghabit/src/store.rs
+++ b/lib/domain/libimaghabit/src/store.rs
@@ -49,11 +49,11 @@ pub trait HabitStore {
 impl HabitStore for Store {
     /// Get an iterator over all habits
     fn all_habit_templates(&self) -> Result<HabitTemplateStoreIdIterator> {
-        Ok(HabitTemplateStoreIdIterator::from(self.entries()?.without_store()))
+        Ok(HabitTemplateStoreIdIterator::from(self.entries()?.into_storeid_iter()))
     }
 
     fn all_habit_instances(&self) -> Result<HabitInstanceStoreIdIterator> {
-        Ok(HabitInstanceStoreIdIterator::from(self.entries()?.without_store()))
+        Ok(HabitInstanceStoreIdIterator::from(self.entries()?.into_storeid_iter()))
     }
 }
 
diff --git a/lib/domain/libimagnotes/src/notestore.rs b/lib/domain/libimagnotes/src/notestore.rs
index 4b93a851..87a26dea 100644
--- a/lib/domain/libimagnotes/src/notestore.rs
+++ b/lib/domain/libimagnotes/src/notestore.rs
@@ -74,7 +74,7 @@ impl<'a> NoteStore<'a> for Store {
     }
 
     fn all_notes(&'a self) -> Result<NoteIterator> {
-        self.entries().map(|it| it.without_store()).map(NoteIterator::new)
+        self.entries().map(|it| it.into_storeid_iter()).map(NoteIterator::new)
     }
 
 }
diff --git a/lib/domain/libimagtimetrack/src/iter/mod.rs b/lib/domain/libimagtimetrack/src/iter/mod.rs
index 9bdda525..0cead41c 100644
--- a/lib/domain/libimagtimetrack/src/iter/mod.rs
+++ b/lib/domain/libimagtimetrack/src/iter/mod.rs
@@ -26,8 +26,6 @@ pub mod tag;
 
 #[cfg(test)]
 mod test {
-    use std::sync::Arc;
-
     use chrono::naive::NaiveDate;
 
     use libimagstore::store::Store;
@@ -37,10 +35,7 @@ mod test {
 
     fn get_store() -> Store {
         use std::path::PathBuf;
-        use libimagstore::file_abstraction::InMemoryFileAbstraction;
-
-        let backend = Arc::new(InMemoryFileAbstraction::default());
-        Store::new_with_backend(PathBuf::from("/"), &None, backend).unwrap()
+        Store::new_inmemory(PathBuf::from("/"), &None).unwrap()
     }
 
     #[test]
diff --git a/lib/domain/libimagtimetrack/src/tag.rs b/lib/domain/libimagtimetrack/src/tag.rs
index 2f099878..0bc96c42 100644
--- a/lib/domain/libimagtimetrack/src/tag.rs
+++ b/lib/domain/libimagtimetrack/src/tag.rs
@@ -65,7 +65,7 @@ impl<'a> From<&'a String> for TimeTrackingTag {
 
 impl IntoStoreId for TimeTrackingTag {
     fn into_storeid(self) -> Result<StoreId> {
-        StoreId::new_baseless(PathBuf::from(self.0))
+        StoreId::new(PathBuf::from(self.0))
     }
 }
 
diff --git a/lib/domain/libimagtodo/src/iter.rs b/lib/domain/libimagtodo/src/iter.rs
index 5809802e..45d7a7c8 100644
--- a/lib/domain/libimagtodo/src/iter.rs
+++ b/lib/domain/libimagtodo/src/iter.rs
@@ -17,22 +17,22 @@
 // Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 //
 
-use libimagstore::storeid::StoreIdIterator;
+use libimagstore::iter::Entries;
 use libimagstore::storeid::StoreId;
 
 use failure::Fallible as Result;
 
-pub struct TaskIdIterator(StoreIdIterator);
+pub struct TaskIdIterator<'a>(Entries<'a>);
 
-impl TaskIdIterator {
+impl<'a> TaskIdIterator<'a> {
 
-    pub fn new(inner: StoreIdIterator) -> Self {
+    pub fn new(inner: Entries<'a>) -> Self {
         TaskIdIterator(inner)
     }
 
 }
 
-impl Iterator for TaskIdIterator {
+impl<'a> Iterator for TaskIdIterator<'a> {
     type Item = Result<StoreId>;
 
     fn next(&mut self) -> Option<Self::Item> {
diff --git a/lib/domain/libimagtodo/src/taskstore.rs b/lib/domain/libimagtodo/src/taskstore.rs
index a166c5c5..48b6e16e 100644
--- a/lib/domain/libimagtodo/src/taskstore.rs
+++ b/lib/domain/libimagtodo/src/taskstore.rs
@@ -162,7 +162,7 @@ impl<'a> TaskStore<'a> for Store {
     }
 
     fn all_tasks(&self) -> Result<TaskIdIterator> {
-        self.entries().map(|i| TaskIdIterator::new(i.without_store()))
+        self.entries().map(|i| TaskIdIterator::new(i))
     }
 
     fn new_from_twtask(&'a self, task: TTask) -> Result<FileLockEntry<'a>> {
diff --git a/lib/domain/libimagwiki/src/wiki.rs b/lib/domain/libimagwiki/src/wiki.rs
index 33a6bc47..743536bf 100644
--- a/lib/domain/libimagwiki/src/wiki.rs
+++ b/lib/domain/libimagwiki/src/wiki.rs
@@ -22,7 +22,7 @@ use std::path::PathBuf;
 use libimagstore::store::Store;
 use libimagstore::store::FileLockEntry;
 use libimagstore::storeid::IntoStoreId;
-use libimagstore::storeid::StoreIdIterator;
+use libimagstore::iter::Entries;
 use libimagentrylink::internal::InternalLinker;
 
 use failure::Fallible as Result;
@@ -91,8 +91,8 @@ impl<'a, 'b> Wiki<'a, 'b> {
         entry.add_internal_link(&mut index).map(|_| entry)
     }
 
-    pub fn all_ids(&self) -> Result<StoreIdIterator> {
-        self.0.entries().map(|iter| iter.in_collection("wiki").without_store())
+    pub fn all_ids(&self) -> Result<Entries<'a>> {
+        self.0.entries().map(|iter| iter.in_collection("wiki"))
     }
 
     pub fn delete_entry<EN: AsRef<str>>(&self, entry_name: EN) -> Result<()> {
diff --git a/lib/entry/libimagentryannotation/src/annotation_fetcher.rs b/lib/entry/libimagentryannotation/src/annotation_fetcher.rs
index dd6c2222..6fbd0078 100644
--- a/lib/entry/libimagentryannotation/src/annotation_fetcher.rs
+++ b/lib/entry/libimagentryannotation/src/annotation_fetcher.rs
@@ -17,18 +17,18 @@
 // Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 //
 
+use libimagstore::iter::Entries;
 use libimagstore::store::Store;
-use libimagstore::storeid::StoreIdIterator;
 
 use failure::Fallible as Result;
 
-pub trait AnnotationFetcher {
-    fn all_annotations(&self) -> Result<StoreIdIterator>;
+pub trait AnnotationFetcher<'a> {
+    fn all_annotations(&'a self) -> Result<Entries<'a>>;
 }
 
-impl<'a> AnnotationFetcher for Store {
-    fn all_annotations(&self) -> Result<StoreIdIterator> {
-        self.entries().map(|iter| iter.in_collection("annotation").without_store())
+impl<'a> AnnotationFetcher<'a> for Store {
+    fn all_annotations(&'a self) -> Result<Entries<'a>> {
+        self.entries().map(|iter| iter.in_collection("annotation"))
     }
 }
 
diff --git a/lib/entry/libimagentrycategory/src/store.rs b/lib/entry/libimagentrycategory/src/store.rs
index e05e8230..88746bb1 100644
--- a/lib/entry/libimagentrycategory/src/store.rs
+++ b/lib/entry/libimagentrycategory/src/store.rs
@@ -109,7 +109,7 @@ impl CategoryStore for Store {
     /// Get all category names
     fn all_category_names(&self) -> Result<CategoryNameIter> {
         trace!("Getting all category names");
-        Ok(CategoryNameIter::new(self, self.entries()?.without_store()))
+        Ok(CategoryNameIter::new(self, self.entries()?.into_storeid_iter()))
     }
 
     /// Get a category by its name
@@ -130,16 +130,13 @@ impl CategoryStore for Store {
 mod tests {
     extern crate env_logger;
     use std::path::PathBuf;
-    use std::sync::Arc;
 
     use super::*;
 
     use libimagstore::store::Store;
 
     pub fn get_store() -> Store {
-        use libimagstore::store::InMemoryFileAbstraction;
-        let backend = Arc::new(InMemoryFileAbstraction::default());
-        Store::new_with_backend(PathBuf::from("/"), &None, backend).unwrap()
+        Store::new_inmemory(PathBuf::from("/"), &None).unwrap()
     }
 
     #[test]
@@ -216,7 +213,6 @@ fn mk_category_storeid(base: PathBuf, s: &str) -> Result<StoreId> {
     use libimagstore::storeid::IntoStoreId;
     ::module_path::ModuleEntryPath::new(s)
         .into_storeid()
-        .map(|id| id.with_base(base))
         .context(err_msg("Store id handling error"))
         .map_err(Error::from)
 }
diff --git a/lib/entry/libimagentrydatetime/src/datepath/compiler.rs b/lib/entry/libimagentrydatetime/src/datepath/compiler.rs
index 037803dc..d7515d16 100644
--- a/lib/entry/libimagentrydatetime/src/datepath/compiler.rs
+++ b/lib/entry/libimagentrydatetime/src/datepath/compiler.rs
@@ -119,7 +119,7 @@ impl DatePathCompiler {
             }
         }
 
-        StoreId::new_baseless(PathBuf::from(s))
+        StoreId::new(PathBuf::from(s))
     }
 
 }
diff --git a/lib/entry/libimagentrydatetime/src/datetime.rs b/lib/entry/libimagentrydatetime/src/datetime.rs
index 745f0807..acfa26c5 100644
--- a/lib/entry/libimagentrydatetime/src/datetime.rs
+++ b/lib/entry/libimagentrydatetime/src/datetime.rs
@@ -209,7 +209,6 @@ fn val_to_ndt(v: &Value) -> Result<NaiveDateTime> {
 #[cfg(test)]
 mod tests {
     use std::path::PathBuf;
-    use std::sync::Arc;
 
     use super::*;
 
@@ -221,9 +220,7 @@ mod tests {
     use toml_query::read::TomlValueReadExt;
 
     pub fn get_store() -> Store {
-        use libimagstore::store::InMemoryFileAbstraction;
-        let backend = Arc::new(InMemoryFileAbstraction::default());
-        Store::new_with_backend(PathBuf::from("/"), &None, backend).unwrap()
+        Store::new_inmemory(PathBuf::from("/"), &None).unwrap()
     }
 
     #[test]
diff --git a/lib/entry/libimagentrygps/src/entry.rs b/lib/entry/libimagentrygps/src/entry.rs
index 410ad2cd..6c6177eb 100644
--- a/lib/entry/libimagentrygps/src/entry.rs
+++ b/lib/entry/libimagentrygps/src/entry.rs
@@ -104,7 +104,6 @@ impl GPSEntry for Entry {
 #[cfg(test)]
 mod tests {
     use std::path::PathBuf;
-    use std::sync::Arc;
 
     use libimagstore::store::Store;
 
@@ -115,9 +114,7 @@ mod tests {
     }
 
     fn get_store() -> Store {
-        use libimagstore::file_abstraction::InMemoryFileAbstraction;
-        let backend = Arc::new(InMemoryFileAbstraction::default());
-        Store::new_with_backend(PathBuf::from("/"), &None, backend).unwrap()
+        Store::new_inmemory(PathBuf::from("/"), &None).unwrap()
     }
 
     #[test]
diff --git a/lib/entry/libimagentrylink/src/external.rs b/lib/entry/libimagentrylink/src/external.rs
index 486b0612..539bbe20 100644
--- a/lib/entry/libimagentrylink/src/external.rs
+++ b/lib/entry/libimagentrylink/src/external.rs
@@ -447,7 +447,6 @@ impl ExternalLinker for Entry {
 mod tests {
     use super::*;
     use std::path::PathBuf;
-    use std::sync::Arc;
 
     use libimagstore::store::Store;
 
@@ -457,9 +456,7 @@ mod tests {
     }
 
     pub fn get_store() -> Store {
-        use libimagstore::file_abstraction::InMemoryFileAbstraction;
-        let backend = Arc::new(InMemoryFileAbstraction::default());
-        Store::new_with_backend(PathBuf::from("/"), &None, backend).unwrap()
+        Store::new_inmemory(PathBuf::from("/"), &None).unwrap()
     }
 
 
diff --git a/lib/entry/libimagentrylink/src/internal.rs b/lib/entry/libimagentrylink/src/internal.rs
index 8323d656..d9c13ddb 100644
--- a/lib/entry/libimagentrylink/src/internal.rs
+++ b/lib/entry/libimagentrylink/src/internal.rs
@@ -18,8 +18,6 @@
 //
 
 use std::collections::BTreeMap;
-#[cfg(test)]
-use std::path::PathBuf;
 
 use libimagstore::storeid::StoreId;
 use libimagstore::storeid::IntoStoreId;
@@ -47,10 +45,10 @@ pub enum Link {
 
 impl Link {
 
-    pub fn exists(&self) -> Result<bool> {
+    pub fn exists(&self, store: &Store) -> Result<bool> {
         match *self {
-            Link::Id { ref link }             => link.exists(),
-            Link::Annotated { ref link, .. }  => link.exists(),
+            Link::Id { ref link }             => store.exists(link.clone()),
+            Link::Annotated { ref link, .. }  => store.exists(link.clone()),
         }
         .map_err(From::from)
     }
@@ -82,19 +80,9 @@ impl Link {
     /// Helper wrapper around Link for StoreId
     fn without_base(self) -> Link {
         match self {
-            Link::Id { link: s } => Link::Id { link: s.without_base() },
+            Link::Id { link: s } => Link::Id { link: s },
             Link::Annotated { link: s, annotation: ann } =>
-                Link::Annotated { link: s.without_base(), annotation: ann },
-        }
-    }
-
-    /// Helper wrapper around Link for StoreId
-    #[cfg(test)]
-    fn with_base(self, pb: PathBuf) -> Link {
-        match self {
-            Link::Id { link: s } => Link::Id { link: s.with_base(pb) },
-            Link::Annotated { link: s, annotation: ann } =>
-                Link::Annotated { link: s.with_base(pb), annotation: ann },
+                Link::Annotated { link: s, annotation: ann },
         }
     }
 
@@ -447,24 +435,24 @@ impl InternalLinker for Entry {
 
     fn remove_internal_link(&mut self, link: &mut Entry) -> Result<()> {
         debug!("Removing internal link: {:?}", link);
-        let own_loc   = self.get_location().clone().without_base();
-        let other_loc = link.get_location().clone().without_base();
+
+        // Cloning because of borrowing
+        let own_loc   = self.get_location().clone();
+        let other_loc = link.get_location().clone();
 
         debug!("Removing internal link from {:?} to {:?}", own_loc, other_loc);
 
-        link.get_internal_links()
+        let links = link.get_internal_links()?;
+        debug!("Rewriting own links for {:?}, without {:?}", other_loc, own_loc);
+
+        let links = links.filter(|l| !l.eq_store_id(&own_loc));
+        let _     = rewrite_links(link.get_header_mut(), links)?;
+
+        self.get_internal_links()
             .and_then(|links| {
-                debug!("Rewriting own links for {:?}, without {:?}", other_loc, own_loc);
-                let links = links.filter(|l| !l.eq_store_id(&own_loc));
-                rewrite_links(link.get_header_mut(), links)
-            })
-            .and_then(|_| {
-                self.get_internal_links()
-                    .and_then(|links| {
-                        debug!("Rewriting own links for {:?}, without {:?}", own_loc, other_loc);
-                        let links = links.filter(|l| !l.eq_store_id(&other_loc));
-                        rewrite_links(self.get_header_mut(), links)
-                    })
+                debug!("Rewriting own links for {:?}, without {:?}", own_loc, other_loc);
+                let links = links.filter(|l| !l.eq_store_id(&other_loc));
+                rewrite_links(self.get_header_mut(), links)
             })
     }
 
@@ -580,7 +568,7 @@ fn process_rw_result(links: Result<Option<Value>>) -> Result<LinkIter> {
         .map(|link| {
             debug!("Matching the link: {:?}", link);
             match link {
-                Value::String(s) => StoreId::new_baseless(PathBuf::from(s))
+                Value::String(s) => StoreId::new(PathBuf::from(s))
                     .map(|s| Link::Id { link: s })
                     .map_err(From::from)
                     ,
@@ -600,7 +588,7 @@ fn process_rw_result(links: Result<Option<Value>>) -> Result<LinkIter> {
                         debug!("Ok, here we go with building a Link::Annotated");
                         match (link, anno) {
                             (Value::String(link), Value::String(anno)) => {
-                                StoreId::new_baseless(PathBuf::from(link))
+                                StoreId::new(PathBuf::from(link))
                                     .map_err(From::from)
                                     .map(|link| {
                                         Link::Annotated {
@@ -694,7 +682,7 @@ pub mod store_check {
                     if is_match!(self.get(id.clone()), Ok(Some(_))) {
                         debug!("Exists in store: {:?}", id);
 
-                        if !id.exists()? {
+                        if !self.exists(id.clone())? {
                             warn!("Does exist in store but not on FS: {:?}", id);
                             return Err(err_msg("Link target does not exist"))
                         }
@@ -783,7 +771,6 @@ pub mod store_check {
 #[cfg(test)]
 mod test {
     use std::path::PathBuf;
-    use std::sync::Arc;
 
     use libimagstore::store::Store;
 
@@ -795,9 +782,7 @@ mod test {
     }
 
     pub fn get_store() -> Store {
-        use libimagstore::file_abstraction::InMemoryFileAbstraction;
-        let backend = Arc::new(InMemoryFileAbstraction::default());
-        Store::new_with_backend(PathBuf::from("/"), &None, backend).unwrap()
+        Store::new_inmemory(PathBuf::from("/"), &None).unwrap()
     }
 
     #[test]
@@ -833,8 +818,8 @@ mod test {
             assert_eq!(e1_links.len(), 1);
             assert_eq!(e2_links.len(), 1);
 
-            assert!(e1_links.first().map(|l| l.clone().with_base(store.path().clone()).eq_store_id(e2.get_location())).unwrap_or(false));
-            assert!(e2_links.first().map(|l| l.clone().with_base(store.path().clone()).eq_store_id(e1.get_location())).unwrap_or(false));
+            assert!(e1_links.first().map(|l| l.clone().eq_store_id(e2.get_location())).unwrap_or(false));
+            assert!(e2_links.first().map(|l| l.clone().eq_store_id(e1.get_location())).unwrap_or(false));
         }
 
         {
diff --git a/lib/entry/libimagentrymarkdown/src/processor.rs b/lib/entry/libimagentrymarkdown/src/processor.rs
index 1adc90e0..6be62a91 100644
--- a/lib/entry/libimagentrymarkdown/src/processor.rs
+++ b/lib/entry/libimagentrymarkdown/src/processor.rs
@@ -133,8 +133,7 @@ impl LinkProcessor {
                         continue
                     }
 
-                    let spath      = Some(store.path().clone());
-                    let id         = StoreId::new(spath, PathBuf::from(&link.link))?;
+                    let id         = StoreId::new(PathBuf::from(&link.link))?;
                     let mut target = if self.create_internal_targets {
                         store.retrieve(id)?
                     } else {
@@ -232,7 +231,6 @@ mod tests {
     use super::*;
 
     use std::path::PathBuf;
-    use std::sync::Arc;
 
     use libimagstore::store::Store;
     use libimagentrylink::internal::InternalLinker;
@@ -242,9 +240,7 @@ mod tests {
     }
 
     pub fn get_store() -> Store {
-        use libimagstore::file_abstraction::InMemoryFileAbstraction;
-        let fs = InMemoryFileAbstraction::default();
-        Store::new_with_backend(PathBuf::from("/"), &None, Arc::new(fs)).unwrap()
+        Store::new_inmemory(PathBuf::from("/"), &None).unwrap()
     }
 
     #[test]
@@ -401,7 +397,7 @@ mod tests {
 
         let entries = store.entries();
         assert!(entries.is_ok());
-        let entries : Vec<_> = entries.unwrap().without_store().collect();
+        let entries : Vec<_> = entries.unwrap().into_storeid_iter().collect();
 
         assert_eq!(2, entries.len(), "Expected 2 links, got: {:?}", entries);
 
@@ -440,7 +436,7 @@ mod tests {
 
         let entries = store.entries();
         assert!(entries.is_ok());
-        let entries : Vec<_> = entries.unwrap().without_store().collect();
+        let entries : Vec<_> = entries.unwrap().into_storeid_iter().collect();
 
         assert_eq!(2, entries.len(), "Expected 2 links, got: {:?}", entries);
         debug!("{:?}", entries);
@@ -473,7 +469,7 @@ mod tests {
 
         let entries = store.entries();
         assert!(entries.is_ok());
-        let entries : Vec<_> = entries.unwrap().without_store().collect();
+        let entries : Vec<_> = entries.unwrap().into_storeid_iter().collect();
 
         assert_eq!(3, entries.len(), "Expected 3 links, got: {:?}", entries);
         debug!("{:?}", entries);
@@ -506,7 +502,7 @@ mod tests {
 
         let entries = store.entries();
         assert!(entries.is_ok());
-        let entries : Vec<_> = entries.unwrap().without_store().collect();
+        let entries : Vec<_> = entries.unwrap().into_storeid_iter().collect();
 
         assert_eq!(1, entries.len(), "Expected 1 entries, got: {:?}", entries);
         debug!("{:?}", entries);
@@ -534,7 +530,7 @@ mod tests {
 
         let entries = store.entries();
         assert!(entries.is_ok());
-        let entries : Vec<_> = entries.unwrap().without_store().collect();
+        let entries : Vec<_> = entries.unwrap().into_storeid_iter().collect();
 
         assert_eq!(1, entries.len(), "Expected 1 entries, got: {:?}", entries);
     }
diff --git a/lib/entry/libimagentryref/src/refstore.rs b/lib/entry/libimagentryref/src/refstore.rs
index 58f05b7b..c378d6fd 100644
--- a/lib/entry/libimagentryref/src/refstore.rs
+++ b/lib/entry/libimagentryref/src/refstore.rs
@@ -91,7 +91,7 @@ impl<'a> RefStore<'a> for Store {
     fn get_ref<RPG: UniqueRefPathGenerator, H: AsRef<str>>(&'a self, hash: H)
         -> Result<Option<FileLockEntry<'a>>>
     {
-        let sid = StoreId::new_baseless(PathBuf::from(format!("{}/{}", RPG::collection(), hash.as_ref())))
+        let sid = StoreId::new(PathBuf::from(format!("{}/{}", RPG::collection(), hash.as_ref())))
             .map_err(Error::from)?;
 
         debug!("Getting: {:?}", sid);
@@ -104,7 +104,7 @@ impl<'a> RefStore<'a> for Store {
     {
         let hash     = RPG::unique_hash(&path)?;
         let pathbuf  = PathBuf::from(format!("{}/{}", RPG::collection(), hash));
-        let sid      = StoreId::new_baseless(pathbuf.clone())?;
+        let sid      = StoreId::new(pathbuf.clone())?;
 
         debug!("Creating: {:?}", sid);
         self.create(sid)
diff --git a/lib/etc/libimaginteraction/src/ui.rs b/lib/etc/libimaginteraction/src/ui.rs
index 09395d54..0ad099a7 100644
--- a/lib/etc/libimaginteraction/src/ui.rs
+++ b/lib/etc/libimaginteraction/src/ui.rs
@@ -55,7 +55,7 @@ pub fn get_id(matches: &ArgMatches) -> Result<Vec<StoreId>> {
             vals.into_iter()
                 .fold(Ok(vec![]), |acc, elem| {
                     acc.and_then(|mut v| {
-                        let elem = StoreId::new_baseless(PathBuf::from(String::from(elem)))?;
+                        let elem = StoreId::new(PathBuf::from(String::from(elem)))?;
                         v.push(elem);
                         Ok(v)
                     })
@@ -70,7 +70,7 @@ pub fn get_or_select_id(matches: &ArgMatches, store_path: &PathBuf) -> Result<Ve
         .or_else(|_| {
             let path = store_path.clone();
             let p    = pick_file(default_menu_cmd, path)?;
-            let id   = StoreId::new_baseless(p)?;
+            let id   = StoreId::new(p)?;
             Ok(vec![id])
         })
 }