Yeah, had one like this too.
She was more after a housekeeper than a cleaner, we were doing silver, scrubbing her front step, doing her brass . . . a complete pain in the neck.
We'd got to the point where her money (4 hours a week) was certainly useful, but by no means make or break, so we binned her off with the line that we wanted to concentrate on the commercial side.
Nice old bird, just stuck in her ways and a bit old fashioned, so we didn't want to be too brutal!