The best stretch of my career, I was going into the office on Mondays, and working from home the rest of the week. Mondays, I would go to meetings and collaborate, and plan the rest of the week, and Tuesday through Friday I was working through the pre-planned work. I've never been so productive - I've since gone back to being in the office Mon-Thursday, and my production is a shell of what it was. There's so much more distraction, and I'm wildly less happy about being there than I was when I was at home all the time.