What I am thinking about: using liquid starch as a temporary window treatment to frost our upper kitchen window so we can get light into the room but not feel like the neighbors above are watching. I can find a lot of projects involving liquid starch and tissue paper to form images or a stained glass effect, but in this case I would prefer a thin coat of white (it’s a fairly dark kitchen). But I want to make sure I can get it off very easily when we move out. I cannot find any instructions on how to clean off when you’re done. Soapy water? Where do I get liquid starch? If you have any advice, lemme know, thanks!