PetFoodDirect.com takes 20% off sitewide with no minimum required, even on sale items, via coupon code LPSD20. Unlike most pet store coupons, this coupon can be used on pet food and non-food items alike. That's the best code we've seen from them in over a year. This code works sitewide with no minimum on most items, even typically excluded Royal Canin Dog Food. Sales tax is not charged in most states. Note that prescriptions are excluded.