How do sweet deals from sites like DontPayFull work? On-site, we have a set of office furniture & lighting coupon codes, office furniture & lighting promotional codes and office furniture & lighting discount codes. For the office furniture & lighting offers and additional items, you can get equivalent coupon codes as well. When you visit the online shopping site where you are making a order from, all you have to do is key in the coupon code. It works pretty much the same way that an actual magazine or newspaper coupon does. Once the code is applied, you can find a certain percentage off the original price - which means substantial savings for your online shopping purchases!