If anyone's interested in the tl;dr bullet points:

  * At home have a sense of separation (psychological detachment) from work:
    * avoid work emails at home
    * incorporate a ritual like changing out of work clothes
    * get fully immersed (no negative work thoughts) in a sport, exercise, volunteering, musical instrument, or other creative pursuit
  * At work reduce nagging thoughts of "unfinished business"
    * plan and organize your work day / develop a clear picture of what you can realistically get done during the day
    * do not start a new task right before leaving
    * take rest breaks, and seek out natural environments if possible,
    * do not do errands on a break