id say if your happy earning £200 a day then fair play, i would, thats still a very good wage per week, id say £6.50 is about right tbh, there are far too many that charge way over the odds imo, fair enough these guys will have larger outgoings as they may have got 15k in the hole for a ionics system and van that a domestic customer couldnt give a toss about, all they want is clean windows, and if a guy comes along and does it with his home built system and older van a tenner cheaper than the next guy of course they will change, they are still having the same job done for less
only exceptions would maybe be the "keeping up with the jones's" types