Wag.com, a new site brought to you by the minds behind Diapers.com and Soap.com, offers 20% off your first order via coupon code WAG20. That's the best percent-off deal we've seen from them. Plus, shipping is free with all orders of $49 or more, making this the best deal we've seen to date for pet food, especially if you buy in bulk. The code works sitewide on pet food and supplies and more, and is for new customers only. Sales tax is charged in MO, NJ, NV, NY, PA, and WA.