OptimLAN is a small, simple, easy to use application that keeps your LAN or internal disks optimized.
Any Mac or Windows temporary files get deleted (.DS_Store, .Trashes, .Spotlight-V100, Thumbs.db, etc.).
When you delete a file from a LAN drive on Mac OS X, it is moved to the trash, leaving a blind copy on the LAN drive.
You could completely empty the trash, but you would lose any other files in the trash as well.
That is why deleting items does not help you regain space. With OptimLAN, you can keep your LAN drives optimized and regain the actual disk space.
NOTE: OptimLAN can only be purchased via the Mac App Store (the buy link redirects you to its App Store page). To purchase/download applications via the App Store an Apple account is required.