drugstore.com has Ocean Potion Suncare Oil Free Sport Extreme Sunblock, SPF 30 (one gallon) for $90. Add two to cart for $10 - 20% off with coupon code BEAUTY20
+ $6 shipping = $14 shipped
. Shipping is free on orders $25 or more; free shipping on all orders with ShopRunner. Make sure to add to cart from sale page and click "Buy Checked Items."