I have been digging around trying to figure out the best method for keeping our headlights clear and 'new looking'. There are several opinions ranging from tooth paste to ultra fine sandpaper. I would be interested in hearing what things have actually been tried and proven. During my visit to the Dallas tech event this past weekend, I heard of someone actually putting the clear film over the headlights once they have been refurbished. Has any done that? I appreciate your feedback.