How about a little FIRE in your phone? Cellfire.com

One great website I found and use is called www.cellfire.com. It is a really cool digital coupon site that works geographically based upon your zip code. Once you have downloaded the program from the internet, all you have to do is show the cashier the coupons, and it is easy as that. Locally, large chains such as Kroger grocery stores and Hollywood Video are participants of the program. In your area, there may be other local vendors that are on the network.