[SquareMan]

So I'm looking to remove a couple (imo) less than tasteful stickers on my windows that the previous owner placed. There's one on the glass over the B pillar on the driver's side and one in the lower left corner of the rear windshield. Additionally, the windows are tinted. I want to make sure that I don't damage the window tint with any products or tools that I use, as well as make sure I don't damage the rear defroster lines. Does anybody have any tips?