Print a $1.00 coupon for Kraft Macaroni & Cheese. Walmart has a five-pack for $4.50. Use the coupon, and the price drops to $3.50. That’s just $0.70 a box!

Use one $1.00/1Kraft Macaroni and Cheese 5-pack (coupons.com)

Final Price: $3.50, or $0.70 per box