A Weekday Bathroom Schedule for Four People, Built From Elinor Ostrom's Rules

At 6:32 on a weekday a fist hits the bathroom door. Inside, the shower has been running since 6:15 and the person in it did not hear the knock. Three more people have trains, buses or school drop-offs to make.

A shared bathroom is easiest to run on a posted schedule with one slot per person, a visible clock, a mild penalty for overrunning and a weekly chance to change the rules. Those parts come from Elinor Ostrom’s study of commons that lasted, and they scale down to a household better than might be expected.

In 1968, the biologist Garrett Hardin published “The Tragedy of the Commons” in Science, picturing herders who each add one more animal to a shared pasture until the grass is gone. Ostrom, a political scientist at Indiana University, went looking for places where that had not happened. Her 1990 book Governing the Commons gathered cases, among them Törbel, a Swiss alpine village studied by the anthropologist Robert Netting. Villagers there capped the cows each family could send to the common pasture at the number it could feed through the winter, and they had done so for centuries. She won the 2009 Nobel Memorial Prize in Economics, shared with Oliver Williamson.

The steps below translate her findings for a four-person home with one bathroom and a 6:30 to 7:30 window. Treat them as a starting draft.

1. Write down the boundary. Name the resource and the users: one bathroom, 6:30 to 7:30 on weekdays, four people. Clear boundaries are the first item on Ostrom’s list; without them nobody knows what is being shared.
2. Give each person a slot, and let them help set it. Fifteen minutes each is a start, but whoever has the longest hair or the earliest train should say so before the schedule is posted. Stick it on the bathroom door.
3. Make overruns visible. A kitchen timer on the sink works. Monitoring is another item on Ostrom’s list, and the household version is that everyone can see the clock.
4. Start penalties small. The first overrun might cost the next day’s first slot. A second in one week might mean a talk. Ostrom called this graduated sanctions, and Maine’s lobster harbors show the idea at higher stakes: the response grows only if the behaviour repeats.
5. Review weekly, in five minutes. Anyone may propose a change on Sunday evening. If all four agree, it replaces the old schedule.

One caution. A schedule only fixes the bathroom if people are awake to use their slots. Slot one falls apart when its owner is still in bed at 6:30, and then everyone shifts up and the plan quietly collapses. Whether that is the schedule’s problem or a wake-up problem is a question each household has to answer for itself; the mismatched wake times Q&A and the piece on two households and one wake time are about that second half.