The toilet seat has a reputation it does not fully deserve. Because everyone treats it as the dirtiest thing in the house, it gets cleaned constantly, which means it is often one of the more sanitary surfaces you touch all day. The real problems are the objects nobody thinks to disinfect, the ones handled dozens of times a day and wiped down almost never. Studies that swab household surfaces keep finding the same thing. Some of the items closest to your hands and your food carry many times the bacteria of the seat you were taught to fear. Here are four of the worst offenders in an average home.

The kitchen sponge is the champion, and it is not close. That damp, porous square is close to a perfect home for bacteria, warm and wet and constantly fed with food particles. Research has found sponges harboring billions of bacteria across their surface, making them densely populated with microbes in a way few objects can match. Wiping your counters with one can spread germs around rather than remove them. Microwaving a damp sponge for a minute kills much of the load, and replacing it often helps more. Better yet, switch to a dishcloth you can wash hot and dry fully between uses.

Your phone goes everywhere with you, including places you would rather not think about, and it almost never gets cleaned. You touch it hundreds of times a day, set it on counters and tables, and hold it against your face. Studies routinely find phones carrying more bacteria than a toilet seat, sometimes several times more than that. The warmth of the device and the oils from your hands give microbes a comfortable place to settle. A quick wipe with a disinfecting cloth once a day cuts the load dramatically. Most people go weeks or longer without ever doing it, which is exactly why the numbers stay so high.

The cutting board, especially one used for raw meat, is another quiet hazard in the kitchen. Every cut leaves a tiny groove in the surface, and those grooves trap juices and bacteria that a quick rinse will not reach. One study found the average cutting board can carry far more fecal bacteria than a toilet seat, largely from raw poultry. Using the same board for meat and then vegetables without a thorough wash spreads those germs straight onto food you eat raw. Keeping separate boards for meat and produce solves most of it. Wash boards in hot soapy water and replace them once the surface is heavily scored.

The television remote and light switches round out the list, and they share the same basic problem. They are touched constantly by every person in the house, including sick ones, yet almost never get wiped down. A remote passed around during an illness becomes a shared surface for whatever is going around the household. Light switches collect the same traffic, hit by dirty hands all day long. Neither makes it onto most cleaning routines because they do not look dirty to the eye. A weekly pass with a disinfecting wipe on remotes, switches, doorknobs, and handles catches the surfaces that spread illness fastest.

None of this means your home is dangerous or that you should live in fear of germs. Most of the bacteria on these surfaces is harmless, and a normal immune system handles the ordinary load without any trouble. The reason it matters is targeted, not general. During cold and flu season, or when someone in the house is already sick, these high-touch and often-wet items are the highways that move illness from one person to the next. Cleaning the toilet while ignoring the sponge and the phone is aiming your effort at the wrong target entirely. A little attention to the real culprits does far more good.

The fix costs almost nothing and takes only minutes a week. Replace or sanitize your kitchen sponge often, and stop trusting it to stay clean on its own. Wipe your phone down daily, since it is the item that travels with you everywhere you go. Keep separate cutting boards for raw meat and produce, and wash them in hot water. Add remotes, switches, and doorknobs to your regular cleaning pass. Redirecting a fraction of the worry aimed at the toilet seat toward these four items is one of the simplest upgrades you can make to a healthier home. The seat, it turns out, was never the problem.