Go here for a 1.00 off PupPeroni dog treat 4.8oz or larger coupon. You will need to register in order to print the coupon.
If your Kmart allows you to use internet printable coupons, this would be a good one to hold on to in case of double coupons. You could score PupPeroni dog treats for .99 cents a bag!
This last weeks coupon inserts had several Science Diet coupons(depending on your region). My sister got about 5 in her inserts(she lives in the midwest) where as I only got one for their newer kind Nature's best. You could combine these with the Petco 5 dollars off a 25 dollar purchase.