It's on target earning, this is what our window cleaners are earning at present.
We pay purely as a percentage of work done, if you don't work you don't get paid, however if you work hard you get paid well.
We only work 5 days a week, generally 8am - 4pm(lunchtime finish on a Friday) and one saturday or sunday morning a month (which is about 1.5 - 2 hrs work for £65)
24 days holiday a year, I don't pay sick pay other than SSP.
Ideally the right person would be able to put their hand to a multitude of cleaning tasks, including windows (trad & WFP), carpet cleaning, pressure washing, and if necessary office cleaning, builders cleans, con roofs, etc, etc.