PayPal just rolled out a fun little mini-site called Do Stuff for Money. The basic premise is that you can send one of your friends an offer, either through Facebook (using Facebook Connect) or e-mail, to do something of your choosing for some sum of money. For example, a recent offer reads, "Laura offered Adam $10.00 to 'Write all the thank-you cards from our wedding.'" If your friend accepts and does what you have asked, you can instantly pay them via PayPal, without having to mess with cash.