That’s why you should always leave a glass upside down and a piece of paper in the sink before you go on vacation.

Economic: no cost.

Scalable: you can combine it with other methods such as vinegar, lemon or bicarbonate for a stronger effect.

Safe: no risk to your pipes or your pets if you leave them at home.

A grandmother’s trick… that is making a comeback.
Some see it as an old-fashioned tip, a somewhat outdated habit. But with longer vacations, frequent heat waves and increasing humidity in our homes, this method is experiencing a real resurgence in popularity. And social media is helping to revive this forgotten good practice. Plus, the feeling of coming home to a clean, healthy and odor-free house makes all the difference after a long trip, a delayed flight or a bumpy road.

This little detail makes all the difference.
Imagine: you come home from

On vacation, suitcases in hand, tired but still full of memories. You open the door … and there a sour, musty smell hits you. Your sink has become a source of bad odor.

But with this simple little gesture, you are greeted by silence, freshness and cleanliness. It is the kind of invisible detail that transforms a painful return into a peaceful one.

Conclusion: It’s just a glass … but what a glass!
Pouring a glass upside down on paper in the sink is neither a passing fad nor a superstition. It is a clever trick, validated by professionals, tested by thousands of households and, above all, very easy to do.

So this year, before you leave, make sure to check all the boxes:

Passport

Sunscreen

Empty the fridge

Water the plants

Place a glass upside down on some paper in the sink

A small thing… for big comfort.