Hi all, I'm new to window cleaning and have picked up a first floor flat to clean tomorrow. I plan to use wfp but I can see that mucky water will end up dripping all over the downstairs neighbours windows!!! I'd thought about asking to do thiers at the same time but don't want to get the brush-off and an earfull ontop. Is there a proper etiquette for splashing the neighbours windows. Any help much appreciated. Luke.