Only put tasks on the board that you’ve explicitly decided to do

Your Kanban board is not a wish list — only tasks you have consciously committed to belong in To Do.

Why it works

A Kanban board loses its function when the To Do column becomes an undifferentiated backlog of everything you might possibly do. A genuine To Do column contains only committed work — tasks you have decided are worth completing in the near term. This distinction mirrors the essentialism principle: having fewer items in the queue is a sign of better prioritization, not of having less work. A short, committed To Do column exerts appropriate urgency; an infinite backlog is just anxiety without direction.

How to do it

1. Maintain a separate "Options" or "Backlog" area for tasks you haven’t yet committed to — keep it off the main board.
2. Only move an item to To Do after consciously deciding it is worth doing in this planning period.
3. Regularly prune the To Do column: if a task has been there for three weeks without moving to Doing, evaluate it honestly.

Evidence

The distinction between committed and uncommitted work is a foundational GTD principle (next-action vs. someday-maybe lists) and is consistent with goal-intention research: only committed goals receive implementation-intention-like follow-through. The Kanban version of this principle is practitioner design. (mechanistic)

Committed vs. uncommitted task management is a well-reasoned principle but not directly tested against undifferentiated backlog approaches in controlled settings.

Common mistake

Moving everything from a brain-dump brainstorm directly into the To Do column — which produces a Kanban board that looks productive but functions as an anxiety generator.