Rob, I am sure Lavinia is refering to carpet and or upholstery cleaning services. This being the case over an 8 hour day is only £40 an hour and not excessive by any stretch of the imagination.
To pay someone 5 pounds and hour I am sure you wouldnt get the same service as Livinia would provide.
As Livinia also pointed out, more monies can be earned doing other work but for the days when nothing else is boooked I think it is brilliant.
I dont think 40 an hour is enough but thats my own opinion. It is still good as a day rate so it would suffice as opposed to nothing at all.
Best, Dave.