Amazon offers the Ensure Active Muscle Health 8-oz. Shakes 16-Pack in Milk Chocolate for $18.59. Add it to your cart via Subscribe & Save and it drops to $17.66 with free shipping. That's about $10 under what you would expect to pay in-store locally. Each shake provides 24 essential vitamins and minerals.
Be sure to cancel Subscribe & Save after your item ships to avoid being billed for subsequent shipments.