Make sure you pay attention to the very end of the offers and do not click yes for anything you don't completely read. Often times there may be another little offer, for example, a savings club, and you aren't aware that you just said "yes" and they have your credit card number and the next month, that club shows up on your bill. Thats how some companies can make a really good cheap offer, its subsidized by the smaller offer you gloss over, so, anytime you are putting in your credit card for an offer, be very careful to read EVERYTHING at the end of the offer.