Tracked by Evreward since 2011, UsaPetExpress offers coupons, cash back rebates and rewards, with savings as high as $10 off. UsaPetExpress discount coupons are rare, only available once or twice a year, but are often more valuable than similar merchants. Even when UsaPetExpress doesn't have a coupon, you can always get up to 11% cash back, and other great rewards, with every purchase.