Just starting out in window cleaning, already do pressure washing and gutter cleaning, but keep getting asked for windows, so why not? The only thing is we currently advertise as ladder less as much as possible for gutter cleaning, so would seem a little silly to start climbing ladders to do the windows. WFP is the obvious way forwards, but currently that is out of our price range though we do fully intend to invest. This left me scratching my head a bit, but then I came across this video Is this a real viable alternative? Would love some feedback on this, as on the face of it seems a good solution, but not sure the technique is very good and to me seems like it would leave streaks by just doing downstrokes? Many thanks.