Hard water stains(spots) on windows.
I just got my new teg ls. and before i had the windows tinted i could see that thier were like dried water spots on my windows, but you cant clean them off, and now that i got my windows limo'd out, you can see it even worse, the guy at the window tint place said you need to get a polisher or somethin and buff the window out, he gave me a demonstration and did it on my window in a little section and it came right out, i waz wondering wut stuff i can buy and where i can buy it at, so i can get this nasty shit off. makes the car look terrible up close, well thats if you notice it.