1. Steering Wheel
You grab the dirty exterior handle of the door and then immediately touch the steering wheel dozens of times per week. If you ever eat while you drive, you're risking getting sick. Take a vehicle-safe disinfectant and wipe down the steering wheel, center console and gear shifter weekly.
2. Ear Buds
Most people are using headphones almost every day, but those in-ear style buds can build up with ear wax and carry bacteria, and dirty over-the-ear versions can lead to breakouts around the hairline. Once a week, unplug them from your device and wipe down with damp, soapy cloth. Let them dry completely before using them again.