GTD in practice — from chaos to an empty inbox

David Allen published Getting Things Done in 2001. The book ran 267 pages and described a system with a dozen lists and a workflow diagram that looked like a factory floor plan. For 15 years it was the bible of consultants and programmers. Then it slowly went out of fashion because it felt like overkill.

It is overkill if you take all of it. It works if you take only the parts that work for you.

Diagnosis: why you need GTD (or not)

Allen writes the book for a specific problem: you have lots of open loops, the brain guards them, so you cannot rest or focus. If your task list is 5 things a week, GTD is too heavy for you. If it is 50 and you constantly feel like you are dropping things — GTD makes sense.

Zeigarnik in 1927 noticed that unfinished tasks occupy working memory better than finished ones. That is the neurobiological explanation for “I have to remember this.” The brain refuses to let go until it sees an external, trusted system that catches the task.

The minimum that works

Full GTD has a dozen lists. The version that actually holds after a year of practice has three:

1. Inbox — everything that comes to mind, no classification.
2. Next actions — specific, atomic tasks (not projects) you have capacity for now.
3. Someday / maybe — ideas you would like to do but not now. Reviewed monthly.

The rest (contexts, calendar, projects) is optional. Most people do not need contexts (@home, @errand), because they work mostly in one place. Most projects are just tasks with more steps — let them live as tasks with subtasks.

The 2-minute rule

Allen: if the next step takes less than 2 minutes, do it now instead of writing it down. Sounds trivial, it is the hardest part to keep. Example: a mail asking “when can you?”. Replying takes 30 seconds. Writing it to a list, finding a slot, returning to the mail — minimum 5 minutes. Plus the psychological cost of the open loop.

The rule works until you have 50 two-minute things in a row. Then 2 hours vanish. Modification: the 2-minute rule only during inbox processing (once a day, 15–30 minutes), not all the time.

Weekly review — the moment most people quit

The heart of GTD is the weekly review. Allen gives a full 11-step list. In practice 4 are enough:

1. Empty the inbox (classify everything that landed there).
2. Walk the next-actions list — drop anything no longer relevant.
3. Walk the someday list — did anything mature into an action?
4. Look at the calendar for the coming week — what needs prep?

Time: 30–60 minutes. When: Friday afternoon or Sunday evening. That is the moment when the system regenerates itself. Without it, after a few weeks the inbox becomes a junk warehouse and the system dies.

What happens when it works

Masicampo and Baumeister (2011) ran an experiment: they asked students to think about an unfinished project, then gave them a focus task. Result: worse. The second group first wrote a concrete plan for the project — the focus task score returned to normal even though the project was still unfinished.

That is the whole point of GTD in one paragraph. You do not execute more. You execute without the internal noise that ate half your resources. The brain finally trusts that nothing will slip through.

What does not work

GTD demands review discipline. Without a daily inbox and a weekly review the system turns into a second mailbox — full, neglected, demoralising. Allen himself admits it: “the system works when you trust it; you trust it when you maintain it.”

The other thing: GTD will not tell you what is important. It is a tool to manage chaos, not to choose goals. For that you need the Eisenhower matrix or something like it — which is why the two methods do not compete, they complement each other.

Sources

1. Allen, D. (2001, revised 2015). Getting Things Done: The Art of Stress-Free Productivity. Penguin.
2. Zeigarnik, B. (1927). Über das Behalten von erledigten und unerledigten Handlungen. Psychologische Forschung, 9, 1–85.
3. Masicampo, E. J., & Baumeister, R. F. (2011). Consider it done! Plan making can eliminate the cognitive effects of unfulfilled goals. Journal of Personality and Social Psychology, 101(4), 667–683. doi.org/10.1037/a0024192