Hook, point, proof
HookPointProof
Use it for: Your default for any single idea you want people to remember.
Open with a line that names the payoff or the surprise. State your point in one plain sentence. Then give one piece of proof: a number, an example or something you saw happen.
Most houseplants die from too much care, not too little. Water only when the top inch of soil is dry. I moved my watering from "every Sunday" to "when the finger test says so" and haven't lost a plant in two years.