(This was too good not to share)
Don't lick doorknobs, shopping cart handles, or toilets. Honestly, just don't lick things at all. This goes double for random strangers, don't lick them either.
Keep your hands and fingers away from your face. Don't suck on your fingertips after shaking hands with someone, that's just creepy.
Wash your hands after being around bodily excretions of any form, whether yours or someone else's. This is also a good time to remember not to lick your fingers.
Keep a couple of N95 masks with you at all times. If someone near you sneezes without covering their nose or burying it in a sleeve, walk over and place a mask over their face. If they try to remove it, use duct tape or staples to keep it in place.
Keep a 55 gallon drum of hand sanitizer inside the front door to your home. Upon entering the house, disrobe and climb into the barrel, applying the sanitizer to every body part, crevice, and orifice, just to be safe. If possible, have a family member get the areas you can't reach. Avoid open flames for the next several minutes, or catching a virus will be the least of your worries.