Simply switching devices helps. If it's after 5pm and I don't have any meetings or tasks that I can complete by 6pm, I turn off the work laptop and put it away until the next morning.
That's so true. It sucks a bit when you develop a lot of 'online' hobbies, like gaming, reading blogs, etc. But backpains will make even the most hardcore games into runners :)
And hardcore runners into yogis!
I hope musical instruments don't count as "devices". :-)
Yep, this helps for me too. I sign off my work laptop between 5-6pm and don't get any notifications on my other devices.