This was new for me so I thought I'd share, though many of you probably already know about it. There's an online organization called freecycle - the website is freecycle
You can join a local group, and people offer stuff they don't want and post things they're looking for through email. When someone reads about something they want, they respond to the person making the offer and go pick it up...either at the offer-ers house, or a public place or something. Of course everything changes hands for free. It's a great way of keeping stuff out of landfills - yaknow, one man's trash theory in practice. It's great. Sometimes I'm surprised at what people trade - sometimes it's pretty funny stuff!
Anyway, give it a try - you'll love it too
(do I sound like a toothpaste commercial?