The last thing anyone wants after returning from a relaxing vacation is opening the front door to unpleasant odors or finding unwanted pests waiting inside. While most homeowners remember to unplug electronics, lock doors, and turn off the water supply, one small detail is often forgotten: the kitchen and bathroom sinks. During a week or two away, unused drains can become a source of stale smells as plumbing traps slowly dry out, especially in warm weather. Moisture lingering around the drain can also create an inviting environment for tiny insects looking for an easy way indoors. Fortunately, preventing these problems costs almost nothing and takes less than a minute before you leave.

One of the easiest methods is surprisingly simple. After cleaning and drying the sink, place a paper towel directly over the drain and cover it with an upside-down drinking glass. The paper helps shield the opening, while the glass creates an extra barrier that discourages odors, insects, and airflow from coming up through the pipes. Unlike some sink stoppers that can loosen or fail to seal properly, this combination stays in place without special tools or equipment. It may look unusual, but many experienced travelers rely on this easy habit before locking the door and heading out—and there’s one more step that makes it even more effective.

Before covering the drain, pour a cup of hot white vinegar into the sink to help break down residue that can cause lingering smells. Let it sit for several hours, then rinse with warm water and wipe the sink completely dry. For an extra fresh scent, rub a lemon wedge around the drain before placing the paper towel and glass over the opening. Just as an attorney values proper documentation, an insurance company appreciates preventive maintenance, or a homeowner protects a mortgage investment with regular upkeep, caring for your plumbing can help safeguard your home’s condition. A little preparation today may save you from unnecessary cleanup, unpleasant surprises, or costly maintenance after returning from your trip.

When you finally come home, you’ll be greeted by a cleaner, fresher house instead of musty air or unexpected visitors crawling out of the drain. This quick routine requires no expensive products, special skills, or extra equipment, making it an easy addition to any travel checklist. Small preventive habits often deliver the biggest rewards, especially when they protect the comfort of your home while you’re away. Before packing your suitcase for your next vacation, take a few extra moments to prepare your sinks—you’ll likely appreciate the difference the moment you walk back through the door.