diff --git a/.gitignore b/.gitignore
index 8d4e09f..0a02d59 100644
--- a/.gitignore
+++ b/.gitignore
@@ -22,9 +22,6 @@ env/
 # Ignore ds store files
 .DS_STORE
 
-# Backup files
-*.bak
-
 # Personal TODO files
 TODO
 
diff --git a/packages.yaml b/packages.yaml
index 7adb1b5..c46e6ae 100644
--- a/packages.yaml
+++ b/packages.yaml
@@ -8,6 +8,7 @@ pacman:
     - net-tools
 
     # CLI
+    - pacman-contrib # Contains many useful scripts for pacman, such as paccache
     - exa # Modern ls replacement
     - ncdu # Show folder sizes in a neat CLI graphical way
     - cron # Scheduling program
diff --git a/root/etc/systemd/system/paccache.timer b/root/etc/systemd/system/paccache.timer
new file mode 100644
index 0000000..8423e18
--- /dev/null
+++ b/root/etc/systemd/system/paccache.timer
@@ -0,0 +1,13 @@
+# Clean pacman cache of old and uninstalled packages every month
+# This needs to be started by systemctl stat paccache.timer
+# Usage requires pacman-contrib package to be installed
+
+[Unit]
+Description=Clean-up old pacman pkg
+
+[Timer]
+OnCalendar=monthly
+Persistent=true
+
+[Install]
+WantedBy=multi-user.target
diff --git a/root/usr/share/libalpm/hooks/paccache.hook.bak b/root/usr/share/libalpm/hooks/paccache.hook.bak
new file mode 100644
index 0000000..53f1439
--- /dev/null
+++ b/root/usr/share/libalpm/hooks/paccache.hook.bak
@@ -0,0 +1,15 @@
+# Pacman hook to automatically run paccache -r with pacman
+# This hook is disabled by default, it can be enabled by
+# renaming this file from paccache.hook.bak to paccache.hook
+
+[Trigger]
+Operation = Upgrade
+Operation = Install
+Operation = Remove
+Type = Package
+Target = *
+
+[Action]
+Description = Cleaning pacman cache with paccache ...
+When = PostTransaction
+Exec = /usr/bin/paccache -r