Though you probably clean your home’s interior on a fairly regular schedule, the dirtiest areas of your house are hiding in plain sight. Your household tools collect dirt, grease, and germs, making your cleaning efforts less effective, even unhealthy. In fact, every time you use your mops, sponges, and rags, you could just be spreading more germs around your home. The next time you use your trusty cleaning tools, take a moment to maintain and sanitize them.