Amazon has the 4-Pack 33.8oz Zico 100% Coconut Water Drink on sale for $19 - 35% off coupon (check "Save an extra" box, eligible on first S&S order for this product) - 5% off with Subscribe & Save (can cancel anytime) = $11 with free shipping on $35+ or with Prime. Roughly 8.4 cents per ounce.