As a rule i am quite particular about how i carry my camera equipment, everything has a place, pockets are closed and zippers are secure. last weekend i went to my daughters fete and though ill throw my spare 8gb cf card in my pocket, what can go wrong. well at some point it vacated my pocket never to be seen again. The card had lots of pics from my Cambodia holiday on it, all down loaded so no loss there. It occurred to me that if found chances are the finder would look at the contents of the card. To this end now as a rule, the first pic on my card is a note saying if found please contact .................,off course not losing the card in the first place would be easier.