Do you have a Half-Price Books near you? They sell books, records, tapes, etc., and give a fair price. One trip in and you're done.
Unlike with Craig's List.
We had a thread a few months ago on excactly that topic, people's experiences with Craig's List. I think Jerry started it. Perhaps you can do a search. Mostly good, but there were some cautions, too. I know I posted on that thread... you can search my old posts and perhaps find the thread. Or try Jerry's, because I think he started it.