Right now you can get 50% off one item on Wag.com item with code: MYPOINTS50 Wag.com has food & supplies for cats, dogs, fish, reptiles, small animals, and birds.
To maximize your savings, realize that free shipping is on order $50+ before the 50% off code. I picked for an example the Iams ProActive Health Smart Puppy food at $51.99, as you can see below it comes to $26.99 shipped after applying the code: MYPOINTS50
Max. $25 off. So ordering something right at $50 or so will get you the most savings and free shipping.