Browse through the list of advertisers at
Coupons on your cellphone.
Pick one that interests you.

Read about the great offer right on your phone. If you want to save it for use later, select "Add to Favorites" at the bottom of the page. Once you get to the retailer, press "Redeem Coupon".

The phone displays the coupon right on the phone with the code for the cashier. Show the phone and receive the discount!