This is for helpful tips right? If your headlights are glazed over or starting to become cloudy use toothpaste!
The coarser the better, none of this smooth Colgate or aquafresh, it has to be coarse to cut in
If your lamps are dirty obviously give them a quick wash beforehand and let them dry. Buff the toothpaste on with a microfibre cloth (more cloudy make it more pasty) leave for about 10 minutes then buff/clean off with same cloth
Sit back and admire, if you need a second round go ahead, this process won’t damage your lens
The best paste I’ve found is Oral B gum and enamel repair, it’s very coarse so works a treat, brush your teeth and you’ll see why, I’m sure there are others but this is the best I found
Repair your mouth and get your headlights gleaming again, it’s a win win