A POS terminal receives a signal that indicates an item, for example, via a bar code scanner. The POS terminal ascertains whether the item is associated with an offer for a rebate. If so, a code is generated and output to the customer, such as on a printed receipt. The code is associated with an offer...http://www.google.com/patents/US8015059?utm_source=gb-gplus-sharePatent US8015059 - Method and apparatus for facilitating the sale of subscriptions to periodicals