@hopeful33250 Actually walking outdoors is something to be done pretty much anywhere at this time of year (unless it's raining or icy). Fresh air is good for everyone and daylight improves feelings of well-being. Just put on layers if it's cool out there. It's free too! My daughter has discovered evening family walks help her energetic children wind down and sleep better.
Another thing to do is dust off a hobby you "never have time for" - a friend and I are pulling out the watercolors tomorrow and brush up our skills.
My sister is cleaning one drawer, cupboard or closet each day. My friend is sorting family photos, I'm sure it will lead to her contacting remote family members.
What long-neglected interest or task is lurking in your home?