Print the $3/1 Pro Plan coupon on Coupons.com and use it on the small bags of Pro Plan dog food that are priced at $3.57 to get these for just $0.57 per bag. If you can’t get that link to work, you can also sign up on the ProPlan website.
You should be able to print the coupon twice per computer.
Thanks, The Thrifty Couple!
(Note: The link in this post is my referral link. Read my disclosure policy here.)