Hurry and print a hot new $10.00 coupon to save on Purina Pro Plan pet food and cat litter! PetSmart has Purina Pro Plan cat litter on sale for $9.99. Use the $10.00 coupon with the sale price to score cat litter for free! The coupon states “redeemable Only at Petco” but PetSmart’s coupon policy states that they will accept competitor coupons. Hurry–this coupon prints with an expiration date of 7/12.