Petco is having a Buy 1 Get 1 FREE Sale on Pet Treats when you use promo code BOGOFREE at checkout! Also, if you have not used Repeat Delivery before, you can save an additional 40% off + free shipping when you use code SAVERD40 - you can stack both codes! Note that you can cancel your repeat delivery subscription at any time. These promo codes are valid through August 19th.