So all those who have agreed with Robert why are you posting in the morning?
Lots of points here.
Firstly the concept that you are cheap will keep you working 7 hours a day isn't necesarily true. You could still have your van on the drive. And £45 an hr at those price (travelling, chatting to custy, stain removal)?
The reality is rather than being creative, intelligent and strategic about building a business, that approach is basically saying I'm only good enough to get these low prices, it's the only way I can compete. I think most people on here are way better than that surely.