This week at Target, they have a promotion going where if you buy 10 boxes of Kraft Mac & Cheese, you will receive a $5 Target giftcard. Try this deal to score them for $0.52 each.
Buy 10 Kraft Macaroni & Cheese, 7.25 oz $1.02, regular price
Buy 10, Receieve $5 Target Giftcard (through 8/22)
Pay $10.20, Get a $5 Target giftcard
Final Price: $5.20 or $0.52 each after taking the giftcard into account