Assuming the whole house is tile or moppable floor (no carpets).
Is hygienic to be mopping the kitchen floor with the same mop that does the bathroom? I have a 1yr old who eats things she finds on the kitchen floor and a 5yr old who wees on the bathroom floor.
So 2 mops then - one bathroom and one kitchen?
But which mop to use in the bedrooms? And the livingroom? The hall where the dog sleeps? The front steps?
Three mops and three buckets (one bathroom, one kitchen, one 'other') seems excessive and, well, a bit mad.
I promise you I am actually giving this serious thought .