best not to do them in the first place, but if your hungry you got to. But to jump start DONT market to the ones that end up being low profit (IE apartments and restaurants) which most cleaners start out with.
Best way to get rid of them is to raise the price! Easy Peezy
How much do you guys see repeats in lower-end jobs? Not property management jobs, just lower end homeowners. I imagine dropping those jobs would be more about the psychology of the cleaner and less about how to get away from them.
I focus on rugs, so it's pretty easy to turn people away when you're charging twice what they paid at Walmart for the thing, but that obviously doesn't work the same in wall-to-wall.