I pay such close attention to doorknobs, etc... that I could tell you everything my hands touch each day. I push open doors using the back of my arm instead of my hands, press elevator buttons with something I'm carrying, etc.... Sometimes I just use my left hand for public surfaces until I can get to hand sanitizer. That way I know one hand is okay if I need to touch my face. As soon as I get home I wash my hands to avoid dragging home unwanted friends. I don't want Wegs--my BFF-- to get jealous, you know?
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