A common thread in these calming replies is that we all just need to wash our hands and we will be fine. That's obviously good advice, but if it's airborne, washing hands won't be enough. Especially if you find yourself out in public.
I ride the Metro to work every day. I'm stuck in a large tin can with about 50-100 strangers for about 15 minutes each morning and evening. I would either need to stay home, wear an N95 mask, or ride my bike to work. I already have a
box of 20 masks, which will get me through about one month. I probably need another two boxes to be safe. When I get to work, I'm in a building with about 750 people. The hallways aren't mobbed or anything, but the possibility of running into an infected person would be real. So do I leave my mask on all day long? I guess so. It would suck.
The other options? Staying home is probably crazy, but that's where the food horde would come in handy. Riding my bike would mean tuning up my old Schwinn Varsity and taking my life into my hands. Plus, I'd still need a mask at work.