Two things happened around the same time so I can't say for certain which had the bigger impact. I was a habitual over worker. I would try to beat rush hour on

Two things happened around the same time so I can't say for certain which had the bigger impact. I was a habitual over worker. I would try to beat rush hour on my drive in, and leave after it was over. Then, shortly after the birth of my son, we gave up the second car and I started taking the train to work. Now instead of waiting for traffic to die down, I have to get out right on time to catch my train. When my boss tried to give me little jobs at the end of the day i could say, "Sorry have to catch the train." Eventually my boss got use to it and stopped trying to give me work just as I should be leaving - leaving me emails for the morning instead, and balance is much improved.