Mine sort of go sideways which is supposed to make both sides accessible. I don't like to do it though in case it upset the works, so the outside upstairs and, increasingly, downstairs too, get left to the rain to do it.
E-cloths are old hat now! They don't have the fun element of the Karcher. And are less likely to appeal to little boys.
rosequarz you just do a sideways swipe near the bottom, two thirds across, then another from the other side, just past the end of the previous swipe. 
granny-a the wood moving was different.
Poor WM. 