Commonly used abbreviations: RR = Register Rewards IAC = In Ad Coupon IVC = Instant Value Coupon (Walgreen’s store q) OOP = Out of pocket WYB = When you buy MM = Money maker MIR = Mail In Rebate   Groceries: Buy 3 12pk of 7 Up, Dr. Pepper, A&W, Sunkist or Canada Dry Continue Reading …