Right now, they have available a ton of the Baby Einstein DVDs Baby Mozart, Baby Beethoven, and Baby Bach. Just for listing 10 DVDs (pretty much saying you have them and will be willing to swap them in the future) you get a free credit you can spend right away. It's awesome! You can even put your account "on vacation" until you are ready to mail off DVDs... try the site first and see if you like it before you send any but I think you will love it. I do!!
You DO NOT have to give credit card info or anything like that. : ) http://www.swapadvd.com/index.php?n=7&r_by=cmj53
