if you go on live.com and search for something like ps3, a link for a ebay purchase will come up. it will get you 30% off on alot of shit on ebay. I may pick up the ps3 mgs4 bundel or the 160gb ipod
what it does (if you do it right) is tell you that you get cash back. then you have to have ebay (through ebay messages) tell live.com that you have cash back. you go to live.com and link it back to your paypal account and in 60 days, you get the money back.