I've been catching up on all of the things I want to do, but previously couldn't. So yes, that includes long baths, lots of reading, watching series that people have been going on about for ages, practicing my musical instrument, spending time in the garden, exercising..
I've also used the opportunity to get things in the house sorted. So in the first lockdown I cleared the garden then had it flagged when the guys I use were back working.
I've also clearing the living room, kitchen and bedroom, which took about a week in total including lots of trips to the tip. You could also have a look round and see what you don't need anymore, maybe put it on eBay or Marketplace and make a bit of spare cash.
It might not be the most exciting time of your life, but you can certainly get plenty done.
Also enjoy lying in, cook luxurious meals (or order a takeaway at the weekend), maybe even write a book or look into starting up a new business.
Keep in touch with friends and family when you can. Go out for walks with them (one at a time of course) if you're able.
It seems like a long time until March now, but honestly, it'll fly by.