Amazon has the 12-Pack of Optimum Nutrition Amino Energy + Electrolytes Sparkling Hydration Drinks (12oz cans, Mango Pineapple Limeade) for $11.32 - 5% off with Subscribe & Save (can cancel anytime) - 20% off coupon (check “Save an extra” box, eligible on first S&S order for this product) = $8.49 with free shipping on $35+ or with Prime.