Thanks for all the replies guys.
I don't really wanna keep kinking the hose, I think it might damage it.
Autobrush would be useless for me, as I'm always bashing the side of the brush into walls/window frames anyway, so would keep turning it off accidentally.

Tap on pole is ok, but again, loopy.
Why doesn't someone invent a jet that's poweful enough to squirt from the bottom of the pole to the window, like a very accurate water cannon.
I'm just waiting for someone to think I'm actually serious!!!!!!!!!1

I'll keep thinking..
J