how bad are they.? if it's a first clean then wagtail on a pole, this does take a bit of practise to get it right , if a maintenance clean and just surface dust your taking off then a dragonfly or something similar would be ok, if you have not got access to one of these then I normally use a applicator on a pole I then put a large microfibre over it and use a heavy duty elastic band to secure, I would wet a one edge of it with pure and after passing the wet edge over the glass turn it over and use the dry edge to buff over the glass, we do a few show homes (maintenence cleans) and this works well for us
graham