To make saving simpler, all Doheny's Water Warehouse free shipping codes can be entered directly on the homepage before you checkout. Visit their page at FreeShipping.org, copy the code, and paste it in the yellow "Have a Promotional Code?" drop-down box on the homepage. You can also enter coupon codes in the box, but your discount won't appear until the checkout screen. The Doheny's Water Warehouse free shipping offers are generally all-inclusive and ship in one day. Look for the blue "next day" text on each product page to see if your order is eligible.