Save HUGE on Iams dog food at Target with a new coupon stack and promotion. Big bags of dog food are on promotion: buy two and receive a $10.00 Target gift card. Stack a $4.00 printable manufacturer coupon with a $5.00 Target coupon from today’s Red Plum newspaper insert. Pay just $3.99 per bag after the coupon stack and gift card. Keep in mind that the Target coupon may be regional.