Keep It Clean
Though hand washing can kill almost all germs, your hands begin to collect them again immediately after you rinse. Almost every surface is covered with germs, from your cell phone’s touch screen to your car steering wheel. A study in the Journal of Medical Virology reports that cold and flu viruses can survive for 18 hours on hard surfaces. Transmission is easy—all it takes is one wipe of your brow after lifting weights at the gym, or digging into an appetizer with your fingers after putting down a restaurant menu.
Routinely clean your home with an antibacterial spray, such as Lysol or a bleach-water mixture. If you are able to wipe down public surfaces with a disinfectant before touching (for example, most grocery stores provide antibacterial wipes for their carts, and gyms frequently provide cleaners for their equipment), do so.