I keep a very strict boundary between work time and not-work time. I quickly respond to emails and phone calls during work hours, but I do not have email on my

I keep a very strict boundary between work time and not-work time. I quickly respond to emails and phone calls during work hours, but I do not have email on my phone and I don't check my email when I'm not at work. Only my boss has my cell number. It's not published in the company directory. There are rare times when a critical report has gone down (I'm a BI developer) when my boss will call me, and that's fine. But I make it a strong point to keep those to a minimum and to keep the boundary between work and home life very solid.