Enter Purina’s 28-day challenge and receive a high-value $3.00 coupon for Purina One Smartblend dog food! All it takes is a couple of minutes to sign up, create a profile, and track and share results. Walmart has a four-pound bag for $6.88. With the $3.00 coupon, pay only $3.88!

If you want to stock up, there is also a $2.25 coupon from coupons.com. Just click and print. Print twice and stock up!

Use $3.00/1Purina Dog: Purina One Smartblend Dry Dog Food (purinaone.com)

Final Price: $3.88