We think of everything before leaving: turn off the water, empty the fridge, set the alarm. But the sink? We often forget this. However, it is often through it that unpleasant surprises come back. Bad smells, humidity, insects… Fortunately, there is a simple trick that is approved by professionals, free and very effective: place an upside-down glass on a sheet of paper towels in the sink. A small gesture that can change everything.
Why Your Sink Is a Weak Point While You’re Away

When you are away for several days, especially in summer, the pipes can become a real problem. Without regular water passage, the siphon dries out, letting bad smells escape. Worse still, stagnant humidity attracts flies, ants or even cockroaches that can come up directly through the ducts. Result? You enter a house that smells musty… or worse.
The trick of the upside-down glass: simple, fast and clever

It’s very simple: a sheet of paper (paper towels or toilet paper) placed on the hole in the sink, then a glass turned upside down. This duo acts as a natural shield: it prevents gases, odors, and even insects from escaping or entering. It does not exert any pressure and is not likely to loosen, unlike conventional sink plugs, which are sometimes capricious.
The Minute Ritual of the Smart Start
Here are the steps to take before you leave home:
- Clean the sink thoroughly (edges, walls, siphon).
- Pour heated white vinegar into the drain. Leave it on.
- Rinse with warm water after a few hours.
- Run half a lemon over the orifice for natural freshness.
- Dry well.
- Lay a sheet of paper towels.
- Place an upside-down glass (or cup) on top.
There you go! You leave with peace of mind.
Why not use a classic cap?
Good question! But a cork, even if well placed, can move or dry with the heat, letting unpleasant smells through. The upside-down glass, on the other hand, does not press on anything, but blocks the exchange of air naturally. It’s simple, gentle, and reliable.
An ecological, economical and practical tip
- Eco-friendly: no chemicals needed.
- Free: you use what you already have.
- Versatile: Also works in the bathroom, on a bidet or sink.
- Risk-free: it does not harm the pipes.
The detail that changes your return
Imagine: after 12 hours on the road, you finally push the door… and clean, neutral and fresh air welcomes you. No sewer backup, no smell of humidity. Nothing but calm. This small gesture, which no one notices, then becomes the best gift you gave yourself before departure.
What if the real luxury of holidays was also… A return without any unpleasant surprises?
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