> vacuum everything (including the skirting boards)

My house is mostly wood floors but I maybe Swiffer and vacuum once a week (probably a lot less) for about 15-20 minutes. I run Roomba once or twice a week to take care of the rest.

> mop the floors

I can count on one hand how many times I mop floors per year in any size house.

> dust everything else

I definitely don't do the blinds/baseboards/etc enough. Wife usually does the furniture once a week and the rest is on demand.

> clean all the windows

Only when I get a wild hair.

> change/wash/dry the linens/towels

Size of house doesn't change this. See above.

> clean the kitchen

Still only one kitchen.

> clean the toilets

Same number of people