It's a simple habit many overlook, including me at times: turning off the lights when leaving a room. An empty room with lights blazing serves no purpose and wastes energy.
Make it systematic—though I've occasionally plunged someone into darkness in the bathroom or elsewhere, with no hard feelings yet!
Here's my proven trick: I placed Post-it notes labeled LIGHT on every switch at home. It's impossible to miss, and it works wonders for building the habit.
One key nuance: With energy-efficient bulbs, if you're back within 15 minutes, it's often better to leave it on to avoid premature wear.
How about you? Do you always remember, or do you need a reminder? Share in the comments.
The fewer lights left on, the less electricity you use, directly lowering your bill. This no-cost habit can save at least €50 annually.
Master it yourself, then encourage your household—including kids—to follow suit for maximum impact.
