Wagtail on a stick. It's well worth the time it takes to practise with it.
Tosh I take it, you mean pole, not stick.
If you use this method how high have you gone, I will be working at about 28ft. Never used a wagtail before, its the mop and squeegee in one, I suppose its basically the same as cleaning inside windows when you catch all water by following the squeegee with the mop, or is there a different method to using the wagtail.
Years ago when I had a job with a high inside glass wall, I used to use a unger pole, wet the glass with mop then change to a squeegee and just use downward strokes, it worked but wasn't great.
Thanks
Darren