Alcohol wipes in the first aid section of a drug store. About $4. Looks like a baby wipe tub. And it gets hit with medical UV-C every hour hour for about 15 minutes in my clinic room (medical massage therapist). That light kills bacteria and virus. plants too and can cause 2nd degree burns if exposed too long. Also creates ozone that I have to open the door to the outside for about 2 mins to evacuate. It’s usually in the HVAC system at a hospital. This excessive phone cleaning wasn’t intentional, it was by default.