A very similar thread has been running recently on the carpet cleaning forum of Cleanitup under the heading of "Its getting harder".
We are far from alone in seeing certain trends forming, in fact the carpet cleaners seem to be further down that road than we are.
The trouble is there is a growing army of displaced people who are unable to find work in their chosen industry because of redundancy and cutbacks.
Window cleaning and carpet cleaning are ideal fallbacks for these people and if their need is for ready cash they don't care too much about pricing structure etc. A tenner in the hand is what they are interested in.