Concept
The Two-Minute Rule
2 books in the library reach for this idea - each in its own way. When independent authors converge on one concept, it usually deserves attention.
Getting Things Done
How this book uses it: If the next action takes less than two minutes, do it immediately, regardless of its importance. This saves more time than it costs in organizing it later.
The New Emotional Intelligence
How this book uses it: Wait two minutes before responding to any emotionally triggering message. Use email drafts or Slack's schedule-send feature.