Don't be a fall guy. Hire a window washer.
Below is a link of an interview given by the founder of Angie's List to a few window washers here in Florida. Read why Tom Cruickshank, owner of The Window Cleaning Experts Inc., located in Tarpon Springs, recommends a once a year professional window cleaning. Angie Hicks, founder of AngiesList, interviews Tom as to the safe and correct process that should be used when cleaning windows.