A friend used duct tape and plastic bags to cover up his window last week when the window mechanism broke. When he took it off, it left a lot of tape behind and im wondering what could remove it? I got a quart of Goo Gone today but am scared to use it on the paint when I did a search and found that it softens up paint. Would it be OK when used on the window and trim? BTW, the threads (# pattern) are still stuck to the adhesive.