John Oliver has some sensible advice.
As for my handwashing…all day long. I work with students every day all day (who I avoid touching, obviously), so I tend to wash my hands thoroughly about once an hour, or before and after I go to class. Not just for coronavirus, but because they’re filthy animals and disease vectors for all kinds of crap…and I have the potential to transfer diseases to a diverse lot of people who wouldn’t normally hang out together but are forced into my classrooms for those sweet, sweet credits.
Spiders are far less infectious than other humans, you know.