Mac

Applications

• EarthDesk - Automatically updates the wallpaper with the current timezone and sunlight coverage
• iWannaSleep - A timer to put the system to sleep after a pre-determined amount of time, great for listening to music before sleeping-in
• DropBox - Synchronize files across multiple computers, 2GB free online storage
• Last.fm - Scrobbling and tracking the music your are listening to, great for reference and analysis

System

• Applejack - Fix disk, permissions, purge cache, and clean up virtual memory page before os bootup