To find the time I must plot and scheme. If I leave the office right at 5, I get the 5:10 bus, which puts me in Rosslyn at 5:20, which means I'm on Metro by 5:30 and to Vienna by 6:00, then home by 6:20 or 6:30. That gives me 15-20 minutes before total black-out.
There's the morning, of course, but that means walking in the darkness and the cold — before the eyes are open and the air is warmed. And then there's lunchtime, but if I want to leave at 5 I can't take a lunch.
I can fold walking into my day, get up and move around the office more, walk up and down the stairs, all of which I do. But I miss my long, stretch-my-legs rambles.
Just one thing to do: make the best of weekends and work-at-home days and shuffle around the other constraints as best I can. In a little over two months, the days start getting longer again.