Peoples perception of window cleaning is quite funny sometimes. I have had two odd conversations recently. A lady whose windows I used to do many years ago, and have since sold that work, was telling how the new window cleaner does it. “He does the upstairs windows with a pipe thing, and then does the downstairs properly.” the other one said “my window cleaner used to do it with a blade thing, but now uses a pipe, but I don't know where the tap is”.