If you ask me, my answer is as often as I can!
Even before the pandemic happend, I have had the habit of spraying alcohol or sanizer on my hands and everything I touch and about to touch.
And now with this new normal (habits) that everyone is practicing, I felt more comfortable doing it anywhere, anytime! 
Sanitation, not only gives me a feel of cleanliness, but it also gives me a sense of safety somehow.
It makes me feel protected!
That's why I always do it.
What about you?
How often do you sanitize and what does it make you feel?
LJ