Brand New Second Hand

Have you tried swaptree yet? I discovered this cool and FREE service a few months ago while searching for a book.
After the quick sign-up, you can list all of the items (books, dvd's, games, and cd's) that you want, and then list all of the things that you have for trade. Swaptree will do the rest...for free! I traded a DVD I no longer wanted for a new book title I had been itching to read. Swaptree makes it easy to ship out too, by giving you a printable postage label and you can then just drop the item in a blue box. You don't have to use this system though, and they do charge you a small fee for it. I didn't realize that you didn't have to use their labels at first, but it is a lot more convenient than standing through a long line at the post office with a toddler in tow! Another inside tip is, you shouldn't list something that you aren't 100% ready to trade. I turned down a trade and was warned that too many of these could affect my user rating.
I love the idea of this service and it's green aspect as well. Then again, I do love all things second hand, well there are a few exceptions.