So... Recently I've been getting up n running with more customers. Most have had no previous window cleaner so you can imagine the state of them. My question is.. do you charge double or not for the first clean? I've been there an hour each time and when your scrubbing away for like £8/ £12 for the hour. I think that's pretty shite and demoralising. How to customers take it saying that the first clean your charging double or almost double but then goes down to a set monthly payment after?