12 ways to change the level of water in a bathtub*

1. Turn the faucet on or off.
2. Change the price of water.
3. Change the size of the bathtub.
4. Change the location of the faucet and/or drain.
5. Change how long it takes for water to start or stop flowing from the faucet when it’s turned on or off.
6. Change the rate that water can be drained or the water pressure from the faucet.
7. Change who has access to the bathtub’s faucet.
8. Change the effectiveness of water from the faucet to bathe.
9. Change the cultural perception, norms, incentives, and accountability around cleanliness.
10. Change how easy it is for others to alter cultural perceptions and norms around cleanliness, water conservation, and daily routines.
11. Change the paradigm and value system out of which a need for bathing and cleanliness arises.
12. Transcend a need for cultural value systems to dictate behavior and perception of reality.

* If generalized, these interventions also work on other systems.

Inspired by Donella Meadows’ amazing Leverage Points: Places to Intervene ina System.