My tip against icy windows: This icer. What I have not already tried everything. Cheap sprays and spray bottles but never thought what they promised. But then I got to SONAX Windscreen paid. Granted, he plays priced in the major league, but as the saying goes: Who buys cheap, buys twice. But now to the product: The bottle fits comfortably in your hand and spray well. The agent works very efficiently against the ice frozen slices. You can watch the rapid thawing. Spray short, wait a little, and then remove the ice. Is still a layer of snow on the ice, you should of course save the application, because then the effect loses. In my experience, the use is worthwhile mainly on the windshield. First, the agent is not exactly inexpensive and Second is prevented by the subsequent disk wipe that you have an annoying streaks on the glass. If you want to rid the side windows, it helps to end with the turnout lip of the ice scraper or window cleaner rework - so keep the streaking low. So far, I was absolutely satisfied with the product and it fits my needs. Peephole Goodbye!