I would find a church. I know some (if not all) of the Goodwill's around here are becoming quite snobbish in what they will and will not take. Most people I know won't give to them or the Salvation Army. We have a St. Vinny's (this could be a regional thing) that takes a lot that isn't that far from home. Plus there are a lot of these clothing bins popping up in parking lots lately that are just for clothes only. I forget the name, but it states they will only accept clothes that will then be giving to those in need, mostly homeless I believe. But I could be wrong.

I can understand the guilt, especially if finding places are hard or getting their is hard and/or expensive. If you don't know of a place yet, just hang on to them until you can find a place. I know clutter can be annoying, but this kind of clutter will eventually find a good home, instead of the landfill.