How do sweet deals from sites like DontPayFull work? On-site, we have a pack of lockets coupon codes, lockets promotional codes and lockets discount codes. For the lockets offers and extra 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 current magazine or newspaper coupon does. Once the code is applied, you can get a sure percentage off the original price - which means big savings for your online shopping purchases!