Toothpaste can dull shiny surfaces and mar
clear plastic windows.
Cigetrette ash does a very good job when mashed
into a fine paste. It can even be used to resurface
CD or DVD disks with pretty bad scratches.
It is about the only good use for cigerettes that I
can think of. When I worked with a bunch of smokers
I gathered several 35mm plastic film canisters of
crushed cigerette ashe. Veryhandy to have around.
Terry