The Wrongman's Fix It Guide: Section 11, Chapter 6, Paragraph 113

Window jammed? This is easy. Cut away all of the glass and replace it with melted Christmas tinsel. As the tinsel heats up in the noon day sun, it will contract and release the window. Alternatively, you can drill half inch holes every six inches around the window frame and inject glucose insulin. It works for diabetics, it’ll work for you too.