Hmm, maybe I was a bit harsh there andy!
I have heard of rounds being rented successfully, but it is a little more difficult than you might think.
If you were going to rent out a round, do it in London, at least you'll be on hand (sort of)
Find a worker you think seems genuine, and already has a bit of his or her own work (And Female window cleaners are very much on the increase!)
Dont pay by the hour, take 20% of the money earned. Get them to leave post paid envelopes where no one is at home, so that most of the cheques come directly to you without having to collect. They can then keep any money they get while doing it, and you can give them whatever else they are owed at the end of the week.
Be prepared for them being sick or on holiday. You'll either need arrange cover or do it yourself if possible (better).
And also, if they're any good they'll leave you behind after about 4 months because their own work has increased sufficiently. Be ready for that, and try and have a few people waiting in the wings. If you find someone really good who has no desire for their own round, take them on formally as an employee.
If customers are lost, contact them to see why. If they havent done a good job, charge 1.5x its value. If the customer is just a pain, let it go.
It can be done, but it is far from easy. I doubt you could do it while doing a full time job as well, but maybe a part time one.
Silly