Clip or print this 75¢/4 Purina One SmartBlend Dog Food coupon. Smith’s has the cans on sale for $1.00 through 3/28. A purchase of 10 is NOT required to get the $1 per item price. You may buy as many or as few as you want for the $1 price. These are regularly priced at $1.49, so this is definitely a stock-up price!