I was riding along one day when I saw a $20, then another, and another....

then a credit card, a medical card, another credit card, a starbucks card... eventually pretty much the contents on some poor guys wallet. Lucky for him he also had a good stash of his own business cards in there too. I got in contact with his secretary and dropped off all his stuff. He even went back to the spot where it all was and managed to find his drivers license. He'd left the wallet on top of his car after getting gas - never did see the wallet itself, just most of the stuff that was inside.

I found another wallet once before - sadder story there. It had been stolen and tossed out of a car no doubt. I found it and called a phone number that I found inside (turned out to be his daughter's boyfriend) before he even knew that he'd been robbed. At least he got all of his medical cards and stuff back.

Back when I was in college I used to work in the darkrooms (I'm a photographer). If you worked the last shift one of the things you did was turn on all the lights and check all of the rooms for cleanliness and thing that might have been left. I found lots of small change that way - and we did a really good clean down/inventory once a quarter, that would also yield a good change dividend. I seem to remember putting in all in a jar and having about $50 at the end of the year.