Hi Tom,
What was your sales pitch, as I too would prefer to do it is the door knocking way.
Some will disagree with me on this but commercial carpet cleaning can be a good earner but getting paid AFTER 30 days can be a problem. I am still owed £750 from a clean six weeks ago.
Domestic work helps with cash flow and is more profitable because you are not funding your own business while you wait to get paid.
I would also advise don't advertise your services in the local free paper, all you get is price shoppers, and your add is competing with £25 a room merchant.
Regards
Graham