Jake, I am only a little taller at 5'7". I struggle to reach some of the tall windows on the outside with a ladder that reaches halfway up the frames. There really are some big windows on my little round. I was thinking of a step up, but don't think I will reach the top.
NWH, that's a good tip for oak frames. I don't think there will be too many in the city I live in, but definitely worth lnowing about.
Dave, I try to keep the soap to a minimum and the windows come up lovely. I shall do the same on the inside with minimum water too.