Now days cloud storage is very popular, from Ubuntu One, Google Drive, Dropbox, Apples iCloud or MS Skydrive.
This services offers file syncing and storage in internet. but what if you wan't to sync files locally or over local network with other computers or USB flash or backup hard drive.
One awesome tool for this purpose in Grsync.
If you like to change plymouth boot theme and you can't decide witch theme to use and you don't want to restart computer every time just to see it here is a way to preview plymouth theme without restarting computer.