Not an easy thing for some, but getting into some semblance of a routine is what's keeping me sane. Things like pretending there's somewhere to go every morning...... bed to be made first thing, then shower and dress comfortably, (yet well enough to be surprised on 'skype' by anyone). After breakfast, housework and laundry come next but nothing crazy. I prefer to tackle things that haven't been done in a long time (washing slipcovers, or reorganizing the broom/cleaning supply closet). DH and I both have our hobbies. Mine are crocheting and painting in oils or pastels, so I toggle that with all of the above (never said routine couldn't be broken).
The mundane housework is where we've become most lax, especially when it comes to tidying up or keeping up with the dishes in the sink or emptying the dishwasher. These days, we mitigate our fear and uncertainty with the occasional squabble. Last night was such an occasion...... our sitting room looked like a bomb hit it. I was unhappy and DH couldn't care less. I went to bed late sorting out the mess.
The rest of the time we listen to music, do crossword and sudoku puzzles, read, play chess or cards with each other (if DH's in the mood) or by myself on line. In the evening, we watch the news (must stay informed), talk with our children and other family members by phone and watch movies and re-runs on TV. At any time during the day, I can also connect right here with all my Gransnet friends.
In Northeastern US where I live, people are being told it's OK to venture outdoors for fresh air, walk the dog, go for a jog etc., provided they stay six feet away from others at all times. DH and I go for walks in our own neighborhood and on Sunday afternoons we get in the car, drive around for awhile, and come back again 
So, have patience, try not to get on each other's nerves, keep yourselves busy (make a routine) and take good care, my virtual friends. This too shall pass, safe in the knowledge that we will always find needed support from each other!