diff --git a/README.md b/README.md
index e61d592..3f2e8ce 100644
--- a/README.md
+++ b/README.md
@@ -98,6 +98,8 @@ Recommended: Brotli/2-7
 ## TODO
 
 ### Core functionality
+- Subcommand 'versions': find different versions of a file in different backups
+- Subcommand 'diff': find differences between two backups (add, mod, del)
 - Default excludes in repository
 - Fix vacuum inconsistencies (either index related, or bundle syncing related)
 - Recompress & combine bundles
diff --git a/excludes.default b/excludes.default
new file mode 100644
index 0000000..f32e0b4
--- /dev/null
+++ b/excludes.default
@@ -0,0 +1,17 @@
+# Mounted locations and pseudo filesystems
+/cdrom
+/dev
+lost+found
+/mnt
+/sys
+/proc
+/run
+/snap
+
+# Cache data that does not need to be backed up
+/home/*/.cache
+/var/cache
+/tmp
+
+# Avoid backing up zvault remote backups
+remote/bundles
diff --git a/src/cli/args.rs b/src/cli/args.rs
index 0a363f1..81377f4 100644
--- a/src/cli/args.rs
+++ b/src/cli/args.rs
@@ -22,7 +22,8 @@ pub enum Arguments {
         reference: Option<String>,
         same_device: bool,
         excludes: Vec<String>,
-        excludes_from: Option<String>
+        excludes_from: Option<String>,
+        no_default_excludes: bool
     },
     Restore {
         repo_path: String,
@@ -86,7 +87,7 @@ pub enum Arguments {
         remote_path: String,
         key_files: Vec<String>
     },
-    Configure {
+    Config {
         repo_path: String,
         bundle_size: Option<usize>,
         chunker: Option<ChunkerType>,
@@ -237,6 +238,7 @@ pub fn parse() -> Arguments {
             (@arg same_device: --xdev -x "do not cross filesystem boundaries")
             (@arg exclude: --exclude -e ... +takes_value "exclude this path or file")
             (@arg excludes_from: --excludesfrom +takes_value "read the list of exludes from this file")
+            (@arg no_default_excludes: --nodefaultexcludes "do not load the default excludes file")
             (@arg SRC: +required "source path to backup")
             (@arg BACKUP: +required "repository::backup path")
         )
@@ -302,7 +304,7 @@ pub fn parse() -> Arguments {
             (about: "analyze the used and reclaimable space of bundles")
             (@arg REPO: +required "repository path")
         )
-        (@subcommand configure =>
+        (@subcommand config =>
             (about: "changes the configuration")
             (@arg REPO: +required "path of the repository")
             (@arg bundle_size: --bundlesize +takes_value "maximal bundle size in MiB [default: 25]")
@@ -354,7 +356,8 @@ pub fn parse() -> Arguments {
             excludes: args.values_of("exclude").map(|v| v.map(|k| k.to_string()).collect()).unwrap_or_else(|| vec![]),
             excludes_from: args.value_of("excludes_from").map(|v| v.to_string()),
             src_path: args.value_of("SRC").unwrap().to_string(),
-            reference: args.value_of("reference").map(|v| v.to_string())
+            reference: args.value_of("reference").map(|v| v.to_string()),
+            no_default_excludes: args.is_present("no_default_excludes")
         }
     }
     if let Some(args) = args.subcommand_matches("restore") {
@@ -455,9 +458,9 @@ pub fn parse() -> Arguments {
             key_files: args.values_of("key").map(|v| v.map(|k| k.to_string()).collect()).unwrap_or_else(|| vec![])
         }
     }
-    if let Some(args) = args.subcommand_matches("configure") {
+    if let Some(args) = args.subcommand_matches("config") {
         let (repository, _backup, _inode) = parse_repo_path(args.value_of("REPO").unwrap(), Some(false), Some(false));
-        return Arguments::Configure {
+        return Arguments::Config {
             bundle_size: args.value_of("bundle_size").map(|v| (parse_num(v, "Bundle size") * 1024 * 1024) as usize),
             chunker: args.value_of("chunker").map(|v| parse_chunker(v)),
             compression: args.value_of("compression").map(|v| parse_compression(v)),
diff --git a/src/cli/mod.rs b/src/cli/mod.rs
index 5de6229..ea007b3 100644
--- a/src/cli/mod.rs
+++ b/src/cli/mod.rs
@@ -218,7 +218,7 @@ pub fn run() {
             }
             print_config(&repo.config);
         },
-        Arguments::Backup{repo_path, backup_name, src_path, full, reference, same_device, mut excludes, excludes_from} => {
+        Arguments::Backup{repo_path, backup_name, src_path, full, reference, same_device, mut excludes, excludes_from, no_default_excludes} => {
             let mut repo = open_repository(&repo_path);
             let mut reference_backup = None;
             if !full {
@@ -236,23 +236,32 @@ pub fn run() {
                 }
             }
             let reference_backup = reference_backup.map(|(_, backup)| backup);
+            if !no_default_excludes {
+                for line in BufReader::new(checked(File::open(&repo.excludes_path), "open default excludes file")).lines() {
+                    excludes.push(checked(line, "read default excludes file"));
+                }
+            }
             if let Some(excludes_from) = excludes_from {
                 for line in BufReader::new(checked(File::open(excludes_from), "open excludes file")).lines() {
                     excludes.push(checked(line, "read excludes file"));
                 }
             }
-            let excludes: Vec<String> = excludes.into_iter().map(|mut exclude| {
+            let mut excludes_parsed = Vec::with_capacity(excludes.len());
+            for mut exclude in excludes {
+                if exclude.starts_with('#') || exclude.is_empty() {
+                    continue
+                }
                 exclude = regex::escape(&exclude).replace('?', ".").replace(r"\*\*", ".*").replace(r"\*", "[^/]*");
-                if exclude.starts_with('/') {
+                excludes_parsed.push(if exclude.starts_with('/') {
                     format!(r"^{}($|/)", exclude)
                 } else {
                     format!(r"/{}($|/)", exclude)
-                }
-            }).collect();
-            let excludes = if excludes.is_empty() {
+                });
+            };
+            let excludes = if excludes_parsed.is_empty() {
                 None
             } else {
-                Some(checked(RegexSet::new(excludes), "parse exclude patterns"))
+                Some(checked(RegexSet::new(excludes_parsed), "parse exclude patterns"))
             };
             let options = BackupOptions {
                 same_device: same_device,
@@ -409,7 +418,7 @@ pub fn run() {
         Arguments::Import{repo_path, remote_path, key_files} => {
             checked(Repository::import(repo_path, remote_path, key_files), "import repository");
         },
-        Arguments::Configure{repo_path, bundle_size, chunker, compression, encryption, hash} => {
+        Arguments::Config{repo_path, bundle_size, chunker, compression, encryption, hash} => {
             let mut repo = open_repository(&repo_path);
             if let Some(bundle_size) = bundle_size {
                 repo.config.bundle_size = bundle_size
diff --git a/src/repository/backup_file.rs b/src/repository/backup_file.rs
index 856e227..3cf2ff4 100644
--- a/src/repository/backup_file.rs
+++ b/src/repository/backup_file.rs
@@ -15,13 +15,13 @@ quick_error!{
     pub enum BackupFileError {
         Read(err: io::Error, path: PathBuf) {
             cause(err)
-            description("Failed to write backup")
-            display("Backup file error: failed to write backup file {:?}\n\tcaused by: {}", path, err)
+            description("Failed to read backup")
+            display("Backup file error: failed to read backup file {:?}\n\tcaused by: {}", path, err)
         }
         Write(err: io::Error, path: PathBuf) {
             cause(err)
-            description("Failed to read/write backup")
-            display("Backup file error: failed to read backup file {:?}\n\tcaused by: {}", path, err)
+            description("Failed to write backup")
+            display("Backup file error: failed to write backup file {:?}\n\tcaused by: {}", path, err)
         }
         Decode(err: msgpack::DecodeError, path: PathBuf) {
             cause(err)
diff --git a/src/repository/metadata.rs b/src/repository/metadata.rs
index 346938f..31615f8 100644
--- a/src/repository/metadata.rs
+++ b/src/repository/metadata.rs
@@ -155,9 +155,7 @@ serde_impl!(Inode(u8) {
 impl Inode {
     pub fn get_from<P: AsRef<Path>>(path: P) -> Result<Self, InodeError> {
         let path = path.as_ref();
-        let name = try!(path.file_name()
-            .ok_or_else(|| InodeError::UnsupportedFiletype(path.to_owned())))
-            .to_string_lossy().to_string();
+        let name = path.file_name().map(|s| s.to_string_lossy().to_string()).unwrap_or_else(|| "_".to_string());
         let meta = try!(fs::symlink_metadata(path).map_err(|e| InodeError::ReadMetadata(e, path.to_owned())));
         let mut inode = Inode::default();
         inode.name = name;
@@ -220,6 +218,7 @@ impl Inode {
     pub fn is_unchanged(&self, other: &Inode) -> bool {
         self.modify_time == other.modify_time
         && self.file_type == other.file_type
+        && self.size == other.size
     }
 
     #[inline]
diff --git a/src/repository/mod.rs b/src/repository/mod.rs
index f8a5b53..d6b55cf 100644
--- a/src/repository/mod.rs
+++ b/src/repository/mod.rs
@@ -14,9 +14,10 @@ use ::prelude::*;
 use std::mem;
 use std::cmp::max;
 use std::path::{PathBuf, Path};
-use std::fs;
+use std::fs::{self, File};
 use std::sync::{Arc, Mutex};
 use std::os::unix::fs::symlink;
+use std::io::Write;
 
 pub use self::error::RepositoryError;
 pub use self::config::Config;
@@ -28,9 +29,13 @@ pub use self::info::{RepositoryInfo, BundleAnalysis};
 use self::bundle_map::BundleMap;
 
 
+const DEFAULT_EXCLUDES: &'static [u8] = include_bytes!("../../excludes.default");
+
+
 pub struct Repository {
     path: PathBuf,
     backups_path: PathBuf,
+    pub excludes_path: PathBuf,
     pub config: Config,
     index: Index,
     crypto: Arc<Mutex<Crypto>>,
@@ -49,6 +54,8 @@ impl Repository {
     pub fn create<P: AsRef<Path>, R: AsRef<Path>>(path: P, config: Config, remote: R) -> Result<Self, RepositoryError> {
         let path = path.as_ref().to_owned();
         try!(fs::create_dir(&path));
+        let mut excludes = try!(File::create(path.join("excludes")));
+        try!(excludes.write_all(DEFAULT_EXCLUDES));
         try!(fs::create_dir(path.join("keys")));
         let crypto = Arc::new(Mutex::new(try!(Crypto::open(path.join("keys")))));
         try!(symlink(remote, path.join("remote")));
@@ -66,6 +73,7 @@ impl Repository {
         try!(fs::create_dir_all(&path.join("remote/backups")));
         Ok(Repository {
             backups_path: path.join("remote/backups"),
+            excludes_path: path.join("excludes"),
             path: path,
             chunker: config.chunker.create(),
             config: config,
@@ -95,6 +103,7 @@ impl Repository {
         let bundle_map = try!(BundleMap::load(path.join("bundles.map")));
         let mut repo = Repository {
             backups_path: path.join("remote/backups"),
+            excludes_path: path.join("excludes"),
             path: path,
             chunker: config.chunker.create(),
             config: config,