Joe
The reason for several visits to an area is because people are different.
Mrs Jones type like 2 or 4 weekly/ good regular lady.
Mrs Smith type 6 weekly no earlier/ bread and butter girl, good regular lady.
Mrs Hall type every other month/ likes them done but not want to see you for at least 8-9 weeks, good regular lady.
Mrs last of all, every 3-6 months/ its a big event for her, but she don't require you so much, but can still be a good lady.
It comes down to pricing right for the frequency.
Trying to get a full round of 4 weekly regular and reliable takes some doing, but nice if it works out.
Good luck with it mate.
Steve