I was sitting on the plane yesterday minding my business by reading Skymall when I happened upon this tiny little innovative device.  The Bushnell BackTrack is a straightforward GPS intended for the absent minded.  Just hit the button when you park you car and walk away.  With the Backtrack you won’t have to remember where you parked because it will direct you back to your spot step-by-step thanks to the built-in GPS.  Course,  you’ll need to remember to hit the button to mark your starting location.

Available here for $55