Hubby enjoys attending storage locker auctions. You've probably seen Storage Wars, or maybe heard of it, it's kind of like that but with less mean people bidding lockers up to thousands of dollars. He's been going for about 5 years now, and he's had some success with it.
I prefer mystery shopping. It's fun to feel like you're on a secret mission, and it's also fun to be able to give your comments about the whole experience - dining or shopping.
What ways do you like to put a little extra $$ in your pocket?