Did you know that in cold weather when the glass on your windows is cold it is much more likely to streak? No, that doesn’t mean you should wait till Spring to clean your windows, though, that may be why most of us do! Either way, if you have a smudge or need to clean a window in the Winter, mix equal parts of rubbing alcohol and water, add a few drops of dishwashing liquid and use this to clean. The alcohol will prevent streaking while the soap lifts the dirt.