I have a clean (good condition) queen size mattress that I need to get rid of because I'm moving. What's a good place or organization that will take this kind of thing as a donation? Salvation Army wont do it because I don't have a boxspring and craigslist has only a 50% chance of working. I was wondering if there are any other orgs/places that will take it (in the general area)? Preferably pick up since I have no car.