Headphones and earbuds can get gross. Skin cells, sebum, ear wax, and facial products cling to the parts that touch your body. Increasingly sticky headphones in turn pick up more dirt from the world around you every time you put them down. And despite what the internet says, no, sucking on your AirPods is not a safe way to clean them. Doing so could damage the driver, protective mesh, and electronics (also, it’s just plain nasty). But there are easy ways to properly clean your personal audio devices (for your own well-being and before lending or borrowing a pair). Bonus motivation: When your headphones are clean, they will not only…