Before leaving for vacation, many people remember to unplug appliances, secure valuables, and turn off the water, but often overlook their kitchen and bathroom sinks. When a home sits unused for several days, drain odors can become noticeable, especially if the water in the plumbing traps evaporates. Unpleasant smells and certain pests may also become a concern, making it worthwhile to give your sinks a little attention before you leave.

One simple household trick involves placing a paper towel over the sink drain and setting an upside-down glass on top to help keep the opening covered. Before trying this method, clean the sink and drain as you normally would. Avoid assuming that vinegar or lemon will disinfect the plumbing or prevent insects from entering, and never mix vinegar with bleach or other cleaning chemicals. It is also important to remember that an inverted glass and paper towel are not a guaranteed barrier against sewer gases or pests.

For better results, make sure the sink’s plumbing trap contains water, since this water normally helps block sewer gases from entering your home. If you notice persistent drain odors, consider having the plumbing checked before your trip. You can also clean the sink, remove food debris, and keep the surrounding area dry to discourage pests. A few simple preparations can help you return from vacation to a fresher home, without relying on a single trick to solve every potential problem.