A private window cleaner is useful when you are short of time yourself. Everyone likes to see through clean windows, but not everyone has that much time. Cleaning windows is not something you can do in 1,2,3, if you want to do it well you need to spend a lot of time doing it. You can make it easier on yourself by enlisting the help of a professional. That way, you can be sure that you won't be bothered by annoying streaks anymore!