GTD Times: Keeping the Runway Clear

David Allen refers to your day-to-day Calendar and Action choices as the "Runway."  In the Horizons of Focus model, covered in Getting Things Done and more extensively in Making It All Work, it's the ground floor:

50,000 - Purpose
40,000 - Vision
30,000 - Goals
20,000 - Responsibilities
10,000 - Projects
Runway - Calendar & Actions

We got a letter from Mike who has been reading the Getting Things Done book and shared his experience with us of what David's means by "keeping the ...