What do you do about the downstairs ones that get dripped on? I have been just giving them a wee rinse so they aren't any worse than before I dripped on them, but someone said they could always tell I'd been as I left their windows dirty. It wasn't too bad as far as complaints go, as I ended up getting hired by her! But it got me thinking. What do you all do? I'd feel bad for the paying customers if I cleaned then properly for nothing.