Had a mate who put me on the right track when I first started on the windows, he said leave addressed envelope and your windows cleaned today slip and they'll send you a cheque.
So when I started off I said to each custy, would you mind sending me a cheque and 99% of the time it's a deal, and I hardly ever have to collect. So stick to that and you'll be ok. Just be prepared to make allowances for those that don't have a cheque book. Good luck
