How can I stop the plastic headlights on my car going cloudy?

I have just had to replace the plastic headlights on my Volvo V70 and would like a recommendation on how to protect and preserve them, to stop them from going cloudy again. Is car polish and wax enough or is there something else?
There are specific kits to help restore and maintain headlights. Turtle Wax does a reasonably priced one: amzn.to/2VFUJ5P
Answered by Georgia Petrie

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