 that we still like and still use on a regular basis comes from 3M. 3M and their headlight kits really work well. Now, there's a little bit of elbow grease involved here. We use a power drill for our buffing and sanding operation, but we will actually clean away the old crud. We will follow the steps, a coarse, a medium, and then a fine grit. We will also, when we're done, wax the headlights.