1. A method of providing multiple level discounts on a first product to a customer who purchases at least one cross-marketed product, said method comprising the steps of: awarding a first discount on the first product to the customer based on a purchase by the customer of a first cross-marketed product; awarding a second discount on the first product to the customer based on a purchase by the customer of a second cross-marketed product; adding the first discount to the second discount to determine a total discount on the first product; and awarding the total discount to the customer.