I am now rather more sore than this amount of exercise justifies. Of course, I was also markedly short on sleep, having to get up an hour or more earlier than I'm used to and on a Monday.
This excursion did remind me of why I work from home. In order to spend eight hours in the office (including time spent on lunch), I had to leave home at 7:15 and didn't make it back until 5:55. It was 75 minutes in; 85 minutes home.
On the other hand, I read 137 pages of the book I snagged for the commute this week.