I don't want to be one of those "productivity-or-die" people. This situation is intensely stressful, so if you don't feel like using your WFH time to write a book or start a side-hustle, you'll get no judgement from me. But, if you want to learn something (and there is a webinar glut at the moment, so it's not hard to find stuff to learn), Google has a list of 9 free online courses that would really help you elevate your game.