Most of you have probably at some point noticed someones headlamps that are faded, yellowed, or old looking. This can start happening to any lenses that are plastic (which are most of them) after years of sun exposure. It's a common problem, and usually can be fixed fairly easily and inexpensively. There are a lot of headlight restoration kits on the market now for all you do-it-yourselfers that you can buy at auto parts stores and even at Walmart and Target