Here is a list I came up with:
If you must be near sick people, e.g. if you are a healthcare provider, wear full PPE.
Everyone else:
1. Do not travel by air.
2. Stay home in general.
3. If you venture out stay 6 feet or more away from other people.
4. If other people get in your space keep your mouth shut and do not talk to them.
5. If others approach you get away. If you are around them less than 15 contiguous minutes that is best.
6. Use contactless forms of payment.
7. If you are sick do not go out even for essentials.
8. Especially if you are at high risk have things delivered to you.
9. Improve your lifestyle. Stop smoking. If you are obese lose weight. Diet and exercise to lower your blood pressure. Do not let yourself become stressed and work yourself into a tizzy because of what other forum posters say. Meditate or do whatever else is necessary to stay calm.
10. Breathe deeply of fresh, clean air, not air filtered through a mask for hours and contaminated on the inside with whatever germs have been in your mouth.