Use the Done column to learn about your work patterns
Periodically examine completed cards for patterns in what gets done, what gets stuck, and how long things actually take.
Why it works
Completed work contains signal about how you actually work — which tasks cluster, which take longer than expected, which types consistently stall before completion. Without a visible record, this signal is lost: memory selectively distorts toward how work felt rather than how long it took. The Done column is a data archive that enables the kind of calibrated self-knowledge that makes future planning more accurate.
How to do it
- At the end of each week, review completed cards and note: any patterns in type of work completed, any tasks that took far longer than expected, and any tasks that returned to Doing after being moved.
- Use the patterns to adjust your WIP limit, your to-do prioritization, or your estimation approach.
- Archive Done cards periodically rather than deleting — the archive is useful for performance reviews, project retrospectives, and planning cycles.
Evidence
Reflection on completed work is associated with improved subsequent performance (Di Stefano et al. 2016). The use of a Done archive as a data source for calibration is consistent with planning fallacy research: people who have good historical data on task duration are better calibrated in future estimates. (observational)
Di Stefano et al. studied reflection in professional training contexts; the Done-column review is a practical adaptation of that principle rather than a separately tested procedure.
Sources
- Di Stefano, Gino, Pisano & Staats (2016), making experience count, Harvard Business School Working Paper
Common mistake
Clearing the Done column immediately to keep the board tidy — which destroys the data needed to understand work patterns.
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More practices for Personal Kanban, Made Practical
- Set up a simple To Do / Doing / Done board
Three columns and sticky notes (physical or digital) are all you need to make your work visible at a glance.
- Set and enforce a WIP (Work In Progress) limit
Limit yourself to two to three tasks in the Doing column at any time — never more, even when starting a new task feels easier than finishing an old one.
- Pull work rather than having it pushed to you
Choose your next task when you have capacity, rather than accepting whatever arrives first.
- Watch for cards that stay in Doing without moving
A card that hasn’t moved in several days is a signal about a real obstacle — examine it rather than adding more work.
- 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.
Related concepts
- Getting Things Done (GTD), Made Practical
The five steps, the next-action habit, and the science of offloading your mind
- Essentialism, Made Practical
Less but better — the disciplined pursuit of less, trade-offs, and the mechanisms
- The Action Method, Made Practical
Action Steps, References, and Backburner — a three-bucket system for turning creative work into progress
- Deep Work, Made Practical
Focus blocks, attention residue, and the shutdown ritual — with the evidence