Buffer Time

Productivity for Knowledge Workers

A book-shaped table of contents for productivity as practiced by a knowledge worker: foundations, self-management, goal setting, time and deep work, personal knowledge management, learning, task systems, decision making, habits, digital productivity, engineering and career practice, health, review, and an advanced operating-system layer, plus reference appendices — cross-linking existing notes instead of duplicating them.

Prioritization Frameworks

A small toolkit of frameworks for ranking work when everything can't be first — of which the Eisenhower Matrix is one specific instance.

Time Blocking

Assigning every hour a job in advance so the calendar reflects priorities instead of whoever asked last.

Pareto Principle (80/20)

Why roughly 80% of outcomes trace back to about 20% of effort, and what that implies for where to cut instead of where to optimize.

Task Estimation

Why every estimate is a probability distribution, not a number — and the planning fallacy that makes the median case feel like the best case.