Amazon offers the Kraft Blue Box Macaroni & Cheese 7.25-oz. Box 15-Pack for $9.79. Add it to you cart via Subscribe & Save to make it $9.30 with free shipping ($0.62/box). That's tied with our April mention and the lowest total price we could find for this quantity by $9. (It's also $4 under what you'd expect to pay at a local retail store.)

Be sure to cancel Subscribe & Save to avoid being billed for subsequent shipments.