Visit Walmart.com to score a free sample of Sheba cat food! Scroll down and look for the black box that says “get a free sample.” Fill out the form and submit to receive the freebie. The site says it may take seven to eight weeks for delivery, but I normally get mine within the month. These cans retail for $0.55, and the samples usually come with high-value coupons. Hurry quickly, because these samples never last long!