Some of us use our keyboard each and every day. It’s an essential tool for millions of jobs, but the unassuming keyboard can harbor some nasty, scary, dangerous germs and bacteria. In fact, studies show more than 3,000 organisms occupy every square inch of the average keyboard. Despite all this icky stuff lingering at our fingertips, many of us neglect cleaning the dirt and grime that builds up over time. The following infographic looks into the scary statistics behind keyboard filth, plus offers easy and effective ways to keep it clean—and help keep you healthy.