Burn the rice once and you’ll set a timer forever. Some lessons only need one smell.
CREATIVITY
CREATIVITY
Some lessons go in through your nose rather than your head. You can be told twenty times to set a timer and it stays an abstract instruction, and then one pan of ruined rice fills the kitchen and the lesson is permanent in about four seconds. That is how memory works: a vivid consequence beats a reasonable warning every time.
There is no need to arrange the disaster. Just build the timer in now, on the thing you already know you forget. One line on your phone, set before you start, for the task you keep half watching.
What did one ruined dinner teach you permanently?
Free, with nothing to buy inside it.