Abstract: A method of providing multiple level, price-per-unit (PPU) discounts on gasoline to a customer who purchases at least one cross-marketed product. The customer is awarded a first PPU discount on the gasoline based on a purchase by the customer of a first cross-marketed product, and is awarded a second PPU discount based on the purchase of a second cross-marketed product. The first discount is then added to the second discount to determine a total PPU discount, and a paper receipt is printed for the customer with a customer identification and a transaction identification encoded in a bar code thereon. The total discount is stored in a discounts issued database. The customer then scans the encoded bar code with a bar code scanner at a gasoline dispenser to redeem the discount. The total discount is retrieved from the discounts issued database, and the gasoline station then reduces the price-per-unit-volume of the gasoline by an amount equal to the total discount.