The thing i struggle with isn't really working extra hours or getting off hour messages. I think those are obvious problems and easy to be aware of. My biggest problem is just having work thoughts come up, in the shower, eating dinner, on the commute, falling asleep. One time i was on vacation on the other side of the world and out of nowhere i suddenly realized I knew how to handle some problem i was having at work.…
I remember an interview with David Allen of GTD, and he was asked what he had planned for the afternoon, and he said, “I don’t know. I’ll find out then”. At the time, I hadn’t used GTD much, and I thought this was tongue in cheek. Years later I realized he was dead serious.
The big win of GTD (or similar) is not a Swiss Army knife of task management. The big win is returning mental bandwidth to you.