I have a comfy lounge chair in my living room. It's very different than sitting in a desk, so it's a good ritual for 'play time' coding. I'll crank the music a bit louder, have tea or whiskey in the evening, and try to work on things that are interesting and don't have a deadline (usually open source work, though not always).

This seems to be enough of a change of pace that it's relaxing. Now, sometimes it just doesn't work. The nights I'm feeling particularly burned out or not in the mood I'll just work out and then watch netflix.