Systems Handbook · Operating area
Decision-focused comparisons based on fit and operating friction.
GTD, Time Blocking, Pomodoro, Bullet Journal, or a Second Brain? Choose by Friction
A practical comparison of five productivity methods, organized by the friction each controls and the smallest test worth running before you commit.
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Digital vs. Paper Productivity Tools: Choose by Task, Not Aesthetic
A task-by-task decision matrix for choosing digital, paper, or a defined hybrid—and keeping one source of truth when work crosses formats.
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