I've had my Xbox for a little under a month now, and therefore my free month of Xbox Live is coming to an end. I have an offer on my dashboard for another free month, but it requires that I put in a credit card number and says that it will autorenew after a month. Obviously the smart thing to do would be to take the offer and then cancel the autorenewal, but I have no idea how good Microsoft is about things like that (and also with credit card information). Anyone have any words of wisdom they'd be willing to share?