The Unger '0' degree is a tool that gets more use as it gets more popular for window cleaners. Although there are other tools out there that mimic the 'S' or fanning technique. In the first video another installment from Mark Strange of "Beautiful View" from Toronto, Canada gives us a few more unbiased reviews of products in the window cleaners workplace. This time his opinion on tips for Unger '0' degree. Next up, Don Marsh, the window cleaner from Gainesville, Florida showing us how to use the same squeegee on a fan-window. And thirdly Jason Ihrig with Hi-tech Window Cleaning shows us the same.