I've become increasingly aware of how much my mobile phone (and constant/uninterrupted access to the internet in general) is stealing my concentration. A few weeks ago I finally decided to do something about it.
* Disabled most notifications as well as automatic email checks. I am tired of having not urgent / not relevant information pushed to me and disturbing me. Instead, I fetch the information when I need it. I want to be in control. I do not want to be interrupted, I do not want to be passively fed unnecessary information.