Ask about the Petacular Frequent Buyer Program where you buy 12 and get 1 free. Petacular provides a convenient envelope to save UPC codes in from the bags you buy. When you get 12 UPC codes of the same product and size, bring them into the store to claim your free bag! Valid for dry pet food or litter only. If you switch brands, don’t worry as we will accept UPC codes from different brands, just as long as they are similar size.