Dave,
We do best with large jobs, or areas where we can sink our teeth into.
My most lucrative area is where Roger (Squeaky) lives and it's called Garden City. It's a complete numpty whether doing it trad or WFP.
It's built on the side of a hill, so there's steps everywhere, and quite a working class area; dog poo everywhere.
But because it's such a bugger, we've done really well there picking up work and I really look forward to doing it. It used to take us six or seven days to do, but since moving to WFP, we've got it down to three-days and two-hours (at the last clean).
We thrive on the bigger jobs. Honest.
It's all to easy to say, 'Ah come on, let's sack it now', when you've got to pack your kit up to move to the next job.
It's much harder to say that when you've another 'X' number of houses waiting for you.
That's also why I'm going hunting for some bigger work.