Personal Kanban: see your work, and do less of it at once

Personal Kanban comes down to two rules: put all your work where you can see it, and cap how much of it is in progress at once. Picture a sticky note on the fridge that says "Fix the bike". It sits in a column marked Doing, next to two other notes, and there's no room for a fourth. That missing fourth slot does most of the work.

Where Kanban comes from

It started on a factory floor. In the late 1940s and 1950s, Toyota engineers led by Taiichi Ohno built a system for making only what the next step of the line needed. Cards traveled with the parts and signaled when more were wanted (kanban roughly means "signboard" in Japanese). Work was pulled in when there was room for it, instead of piling up.

Software teams borrowed the idea in the 2000s for work nobody can see, like code. In 2011 Jim Benson and Tonianne DeMaria Barry wrote Personal Kanban and moved the board from the office wall to the kitchen. Their argument was that the same board works for one person's life, from the laundry to a kitchen remodel.

The two rules

1. Visualize your work. Every task goes on a card, and every card goes on a board. The plainest board has three columns: Ready (sometimes called Backlog), Doing and Done. Seeing forty cards at once is usually the first surprise.
2. Limit your work in progress. Decide how many cards may sit in Doing. Small numbers work best; three is a common choice. When Doing is full, you finish something before you start anything new.

Most people skip the second rule, and it's the one that matters. Starting a task feels good. A limit makes you finish one first.

How to set up a board

• Start with a brain dump: every open task on its own sticky note, unsorted.
• Draw three columns. You can add Waiting or This week later, but begin plain.
• Pick a limit for Doing. Three is a fine first number. If you break it every day, raise it to four; if Doing is never full, lower it.
• When a card reaches Done, pull the next most useful card from Ready.
• Glance at Done on Friday. A column of finished cards is good evidence on a week that felt wasted.

Why it works

A board turns "I have so much to do" into a number you can count. The limit stops the slow build-up of half-started jobs, each one quietly taking a bit of your attention. With only three slots, you have to choose which three.

Where it falls short

• A Ready column with eighty cards is a to-do list turned sideways. Trim it every week or two.
• Kanban says what's in progress and nothing about when. You still need a calendar for the dentist.
• A board on the wall at home doesn't help in the queue at the post office. If you're out a lot, it has to live on your phone.

What carries over to Noodle

The two rules still fit, just in a different shape.

Noodle's Plan is a short list per day, and six is the soft limit. Type a seventh task and Noodle asks "That's more than six for one day. Put it on another day?" with an Another day button. It never blocks you, but you notice. That's a work-in-progress limit measured per day instead of per column. Want a tighter one? Stop at three.

Ready has a cousin too. Things you've saved but haven't filed yet (a how-to video, an article, a photo of a form) wait in To organize, with a count on Home. It's a visible pile, and filing an item takes it off. (Planning a save doesn't file it.)

Done is covered by history. Ticked tasks stay on the list, crossed out, and past days are read-only, so you can scroll back to last Tuesday and see what you finished.

When a board app is the better choice

If you like seeing every project in columns, keep a board for projects and a short daily list for today; plenty of people run both. The closest list-based relative is the Ivy Lee method, and daily planning methods, compared puts Kanban next to the rest.