Lyn, I was going to suggest that too when I started reading the thread.
Also, great advice about the address labels. I lost my camera in a taxi on Cozumel last year. Luckily the dispatcher, along the great staff at Paradise Beach located it.
Here is another one, though a little more complicated as they want you to send 4 pictures in. It does link up with Facebook though.
http://ifoundyourcamera.blogspot.com/
Dwayne