I’ve written a nifty guide I though up after I found someone’s digital camera. The first thing people do when they find a digital camera is look at the pictures.  Partly out of pure curiosity, partly out of a legitimate desire to see if they know anyone in the pictures, or will recognize the owner if they see them.  This guide shows you how to lock your contact information on the memory card, so if you do loose it, it can easily be returned.