Please answer. i want to start a headlight repair buisness?

Well, yeah......more to have someone come to my house or work and do it. Two problems: 1) the stuff they're selling for cheap on TV now that will supposedly clear them in 30 seconds.........................2) two kinds of car owners: people who take care of their cars (I treat my headlights every time I wash the car - have never had them fog at all).........and the clueless who don't care.