Keeping the cold out of your windows
Here is what I do to keep the cold from coming in thru the closed windows.
Wash the glass. When dry take some small- bubble wrap. Measure the glass, not the frame, cut the bubble wrap the same size as the inside of the window. Spray the glass with water using a clean spray bottle and apply the bubble wrap, smooth side to the glass. You cannot see thru it but the sun and light can come in. ggks