I'd take the money (you know, for poker nights and stuff) and hand the wallet in to the police, stating clearly that it was empty when I found it.
Easy. Hand it in to the Police. It's the right thing to do.
I'd give the case to charity so other people can benefit!
Mwahaha! The money is mine! Finders keepers, losers weepers. Suck on that!
I'd keep the money but spend it on family and friends.
Use the money to take Loony Bob and Psychotic out on a date!
I'd take the money (you know, for poker nights and stuff) and hand the wallet in to the police, stating clearly that it was empty when I found it.