You’d be amazed by how much bacteria lives on your computer keyboard. One 2018 study published in the International Journal of Environmental Research and Public Health tested various keyboards and found that they contained strains of everything from Bacillus (which can cause a host of diseases) to Staphylococcus aureus(which can cause upper respiratory tract infections). The good news? Disinfecting it and getting it clean is simple. “Dip a toothbrush in a half-vinegar, half-water solution and scrub on and between keys to eliminate germs,”