Spot on there Jeff,if i take any new stuff i say i work on a 6-8 wkly basis but it normally never is i tell them.I say i`m normally behind apart from when we have a long spell of dry weather and it suits them down to the ground as there always pleased to see me because i`m not to regular,i never have people saying not today ever due to this interval between cleans,it enables you to charge far more being 8wkly.If you do your houses 8wkly normally you would expect 7-8 cleans per year but me always being behind it normally works out 5 times a year,as far as domestic work goes in general if your doing your cleans 4wkly it`s far to regular to be demanding from £35 upwards per house which is the only kind of work i`m now taking on due to the fact i`m stacked out with work.