Most people think that the quickest way to clean windows is to use household glass cleaners and paper towels. This is not the case. It is not only expensive but is time consuming as well. The quickest way to clean windows is with a microfiber cloth. You can get them at household product stores and they are the quickest and least expensive way to clean your windows. They do require a little bit of effort, but that should not slow you down. The fact that you just wipe off the window and it’s clean is reward enough.