Have you guys checked out Freecycle yet? It's a site similar to Craigslist, in that it is divided by communities and you can find some interesting stuff on it.
The premise is that there are people out there who would take some of the stuff that you might otherwise throw away. This saves space in the landfills, and if someone wants your stuff, they'll come get it and you don't have to waste your time on a boring trip to the dump. There's no charge, and people don't charge for their items. They just post a message about what they've got and whoever wants it posts a message saying they would like it.