Participating PetSmart stores offer PetPerks members a small bag of Simply Nourish Dry Dog or Cat Food for free via this printable coupon. (Not a PetPerks member? It's free to join.) That's a savings of at least $6. Eligible items include 3-lb. and 6-lb. bags. Click here to find a store near you. Some exclusions apply. Deal ends August 14.