So my area has just gone into lockdown for the next 3 weeks, at least, because of COVID-19.

My gym has been closed, my college is closed, pubs/clubs are closed, we are told to avoid unnecessary social interaction, work from home if possible and so on.

What are some worthwhile things I should do during the next 3 weeks of basically isolation? I will be working on college assignments and I have a (pretty light) set of dumbbells to lift. What’s to do?