3M hooks left on the window too long.
I am such an idiot. I love the hang christmas lights on the front window so I put those little hooks on there a few years ago and just left them up. Well today one of the hard plastic things fell off so I tried to pull the stretchy plastic off and it left a clear film. I have about 7 of those clear film squares now. Some on the window and some on the casing.
I just tried goof off as well as an adhesive remover I use for scrapbooking. I tried using my fingernail. None of those methods worked.
Any ideas how I can get that stuff off?