Headlights are a car’s eyes without them, you can’t see at
night. So, it’s vital to keep them clean as even a thin layer of grime can
reduce how effective headlights are.
A quick wipe over using a cloth and warm water works just
fine. In fact, any water-based liquid will do so long as you buff away any
residue the liquid itself leaves behind. There’s no sense in replacing one type
of dirt with another.
For a more thorough version of the quick wipe, use car
shampoo. If you don’t have any in the cupboard, any non-abrasive household
cleaner will do the trick. Don’t use washing-up liquid or similar substances,
though, as they contain salts and other coarse abrasives that can scratch the
headlights.
Likewise, don’t use any acidic cleaners as they can eat away
at any part of the car they come into contact with. The quick wipe is limited
in its effectiveness, only clearing loose surface dirt. But even clearing more
stubborn grime needn’t break the bank.