FWIW, I found that losing that tended to remove low-productivity time - I do work at my desk and call it a day, whereas it was a little too easy to be hunched on the couch surfing HN. If I really want to do something, walking over to the desktop only takes a few seconds.

Granted, becoming a parent also meant that things like watching a movie are “haha, I’m going to sleep” now, too.

Not me, I get a lot of work done in bed, probably more than half. The easy chair is not a productive setting, I grant you. Lately I prefer to pick up the kindle or tablet for a short break from the desk, and this is probably more conducive to work than switching from "getting things done" to "browsing HN/Twitter" on the same machine.

I use a sit/stand desk but barely ever sit at it, so fifteen minutes of down time here and there helps.