Before heading out on vacation, we’re meticulous: we shut off the water, empty the fridge, and activate the alarm. But one small detail frequently slips through the cracks—the sink.

Overlooking it can lead to some nasty surprises, like foul smells, moisture buildup, or even insects. Fortunately, there’s a clever, cost-free trick, backed by professionals, that can prevent these issues: simply place a paper towel over the drain and cover it with an upside-down glass. This tiny act can make a big difference.

Why the Sink Becomes a Problem When You’re Away

Leaving your home unattended for several days, especially during warmer months, can cause your plumbing to dry out. Without the usual water flow, traps can lose their seal, letting sewer gases waft into your home.

Even worse, the damp environment can draw pests like ants, gnats, or even cockroaches—straight up through the pipes. Coming back to a musty-smelling or bug-infested home is hardly a warm welcome.

The Upside-Down Glass Hack: Simple Yet Smart

All it takes is a sheet of paper towel (or even toilet paper) laid over the drain opening, then an inverted glass or cup placed on top.

This easy combo acts like a barrier: it blocks odors, gases, and even tiny intruders. Unlike sink stoppers that can loosen or shift, this method stays in place without applying pressure and is much more dependable.

A Quick Pre-Departure Routine That Pays Off

Here’s how to prep your sink before you leave:

1. Thoroughly clean the sink, including the edges and drain area.

2. Pour hot white vinegar into the drain and let it sit.

3. After a few hours, rinse with warm water.

4. Rub a cut lemon over the drain for a natural, clean scent.

5. Dry the area well.

6. Cover the drain with a sheet of paper towel.

7. Place an upside-down glass or cup on top.

And just like that, you’re ready to go—with one less thing to worry about.

Why Not Just Use a Regular Stopper?

Fair question. But traditional sink plugs can shift, warp in heat, or simply not seal tightly—especially over several days.

The upside-down glass, by contrast, doesn’t rely on pressure or sealing; it simply forms a quiet barrier that’s surprisingly effective.

Smart, Green, and Budget-Friendly

Eco-conscious: No need for chemical products.

Free: Utilizes items you already have at home.

Multipurpose: Works in bathroom sinks and bidets, too.

Safe: Won’t damage plumbing or surfaces.

That One Tiny Trick That Makes Coming Home Better

Picture this: after hours on the road, you walk through your front door and are met with fresh, neutral air. No dank smells, no hint of mildew, no unwelcome bugs. Just a clean, quiet welcome.

That unnoticed little trick—the upside-down glass—turns out to be the best thing you did before locking up.

Because maybe the true luxury of a vacation isn’t just the trip itself—but returning to a home that feels exactly as you left it.