I am also always using window cleaner on glass fronts and initially on the filigree ceiling. Before the next round at the beginning, I wipe the rubber lip once and start again. I found it a great relief compared to cloths and disposable paper towels. Conveniently, there was one in the family with a short telescopic handle.
Every time I empty a container (quickly out the window before exterior plastering), I feel a little happier having made it to the dry shell on the way.
I agree with : usually, there is a corresponding device unused within the circle of acquaintances.