Control your notebook by slapping its screen...
If your PowerBook, MacBook or MacBook Pro has a motion-sensor for the harddrive's safety, you can use tools and scripts to let it do certain actions based on motions. This video
shows a user slapping the sides of the display to move between desktops (probably using virtue
virtual desktop software). Looks nice, but certainly doesn't let the display live longer. ;) And yeah: Don't slap it too
hard, will ya. :P