With orders of $25 or more, Amazon offers the Purina Alpo Chop House Dog Food 13-oz. Can 12-Pack in Beef Tenderloin for $4.13 with free shipping. That's 34 cents per can and the lowest price we could find by $5.

Note: This is part of the Amazon "add-on" program and can only be purchased with orders of $25 or more.

Update: It now qualifies for Subscribe & Save. Clip the 40% off coupon on the product page to further reduce it to $2.48. Be sure to cancel your subscription once your order ships to avoid being billed for further shipments.