In my house I have bathroom one, bathroom two, fan, kitchen, outlets, living room, L outlets, stove, kitchen outlets two, hall, upstairs, bedroom 1, bedroom two 2, bedroom one outlets, bedroom 2 outlets, outside.
I only have one bathroom, and I don’t have a fan in any room so God knows what that controls.
I also have some wiring in the attic space with a big sign on the power box that says “WARNING wiring uses incorrect colours” and they’re all brown.