How do sweet deals from sites like DontPayFull.com work? On-site, we have a collection of bathroom hardware coupon codes, bathroom hardware promotional codes and bathroom hardware discount codes. For the bathroom hardware offers and supplementary items, you can find equivalent coupon codes as well. When you visit the online shopping site where you are making a purchase from, all you have to do is key in the coupon code. It works pretty much the same practice that an actual magazine or newspaper coupon does. Once the code is applied, you can receive a certain ratio off the original price - which means large savings for your online shopping purchases!