A system and method for rewarding a customer's loyalty to a retail establishment and encouraging regular customer visits by offering a progressive discount on their purchases includes a point of sale (POS) controller that determines a loyal customer's discount. The value of the discount is dependent...http://www.google.com/patents/US7240021?utm_source=gb-gplus-sharePatent US7240021 - System and method for tracking and establishing a progressive discount based upon a customer's visits to a retail establishment
