How to remove melted plastic from house window?
Get a sharp blade and scrape it off. This is the way to get most sticky stuff off window panes.
Use a one sided razor blade, the wash window with what you normally use.
What they said PLUS first heat the plastic a bit using your everyday hair dryer. Don't put the blow dryer to close to the glass especially if it is cold outside. The glass might crack with heat on one side and cold on the other. Next, Do what they said and scrape with a razor blade.
