A friend sets up small dome tents in the larger rooms and designates these as rooms for the kids. Having their own 'room' helps keep thing organized and gives kids a place that is, at least relatively, their own.

Blankets strung from 'clotheslines' can also be used to subdivide large rooms and give people some privacy.

Rigging up a urinal for the males and a cold-water shower outside can free up space in the bathrooms.

A gallon or larger jug wedged between cinder-blocks with a two-foot length of 3/4" PVD pipe and a large funnel stuffed in the top make for a usable urinal. Rig some privacy shields out of plywood or tarps. Empty when half full by filling with water and dumping on the compost heap. With the males doing most of their business at the urinal, outdoors or wherever they spend their time, the traffic around the bathrooms will be greatly reduced. Rigging up urinals is easier on the nose and vegetation than allowing the males to water the property randomly.

The shower can be as simple as a hand sprayer screwed to the wall and fed by a garden hose or you can easily pipe it in by adding a tee and valve to the water line feeding the sillcock. Hand washing and rinsing off can be done clothes on but if you rig a curtain an actual hot-weather shower is practical. Duck boards or course gravel control the mud and tracking.