My Frugal Adventures has posted an awesome pet food deal.
There is a new Target printable HERE for Purina ONE dog food. This isn't the cheapest dog food but when combined with the $3.50/1 coupon HERE you can get an 8lb bag for $5.19 or you can buy the 4lb bags that are $3.79 which would make them $1.79 after Target coupon.
There are also $3 printables and $3.50 printables available to stack with the Target coupon.
My Frugal Adventures suggests that you buy 2 bags at $3.79 and use (1) manufacturer coupon and (2) Target printables. You will pay .08-.58 for 2 bags of dog food.