Anyone knows any good product for headlights restoration

Hay guys! I am a certified mobile automotive and aircraft detailer! I am based out of Los Angeles area and am looking to expand my clientele! Any tips or tricks? I have a Craigslist add, Facebook add, next door add, and try going out to wash my car once or twice a week with my "detail in process" sign up! If you guys have any ideas, please let me know! I have even offered winter deals etc!