To-Do List Methods Compared: Eisenhower, 1-3-5, Ivy Lee, GTD

To-do list methods that work in practice each fix one specific problem. The Eisenhower Matrix sorts tasks by urgency and importance. The 1-3-5 list limits your day by task size. The Ivy Lee method makes you rank a short list and work through it in order. Getting Things Done (GTD) turns vague obligations into concrete next actions. Pick the one that matches why your current list isn't working.

These methods are hard to compare when they're only described in general terms. So this guide runs the same 12-task list through each one. You can see what each method does with identical input: what goes first, what gets dropped, and what it ignores.

After the examples you'll find a table that matches methods to situations, plus a section on the most common reasons lists fail.

The sample task list used in every example

It's Monday evening. You have a full-time job, a few household chores, and this raw list:

Some of these entries are already a problem. "Team offsite" and "Quarterly report" are projects, not tasks. The GTD section below deals with that.

How the Eisenhower Matrix sorts tasks by urgency and importance

The Eisenhower Matrix, named after U.S. President Dwight D. Eisenhower, puts each task into one of four quadrants based on two questions:

• Urgent: Does it need attention soon because of a deadline or a person waiting?
• Important: Does it matter to your goals or responsibilities, with real consequences if you skip it?

Each quadrant comes with a default action: do it, schedule it, delegate or minimize it, or drop it.

The sample list as an Eisenhower Matrix

A few of these placements were judgment calls:

• The report is urgent. Friday is four days away, and writing a draft takes time.
• The poll is urgent but trivial. It closes Tuesday, so you answer it in a minute without treating it as a priority.
• The dry cleaning can be handed off. Someone in your household could pick it up, or you can combine it with another errand.
• The newsletters can go. Delete or archive the backlog. If the same ones keep piling up, unsubscribe when you have a spare minute.

Where the Eisenhower Matrix falls short

The matrix tells you which bucket a task belongs in. It doesn't tell you what order to work in within a bucket, and it doesn't cap how many tasks land in "Do now."

The matrix is most useful for the top-right quadrant. Important but not urgent work, like the offsite and the pivot tables, tends to get postponed until it becomes urgent. To prevent that, put those items on your calendar as specific time blocks, such as "Wednesday 2:00–2:30: draft offsite agenda."

How the 1-3-5 list limits your day

The 1-3-5 rule assumes you can realistically finish one big task, three medium tasks, and five small tasks in a day, for nine in total. The categories describe effort, not importance. A big task might take half a day of focused work, a medium one about one to two hours, and a small one 15 minutes or less.

The sample list as Tuesday's 1-3-5 list

• 1 big: Finish the quarterly report draft (A)
• 3 medium: Build Thursday's slides (B), answer the client's invoice question with corrected figures (C), and outline the offsite agenda with three possible dates (G)
• 5 small: Answer the scheduling poll (D), book the dentist checkup (E), call the plumber (I), pick up the dry cleaning (J), and look up how to renew the car registration (F)

H, K, and L didn't make Tuesday's list. They aren't deleted. They wait for a day with room.

This plan assumes a light meeting day. Half a day on the report, two hours on the slides, two more medium tasks, and five small ones fill a full workday on their own. If Tuesday has meetings, shrink the list before the day starts. On a day with four hours of meetings, a 1-2-3 list (one big, two medium, three small) is more realistic.

The fixed slots work because they force trade-offs. If a new big task shows up, it has to replace the report. You make that choice openly instead of quietly overcommitting.

The weakness is that size isn't priority. A small task can matter more than the big one, and the format doesn't tell you what to do first.

How the Ivy Lee method works

The Ivy Lee method is named after Ivy Lee, an early 20th-century consultant. It's the strictest of the four methods and also the simplest:

1. At the end of each workday, write down no more than six tasks for tomorrow.
2. Rank them by how important they really are.
3. The next day, start on task 1 and keep at it until it's finished. Then move to task 2.
4. Work down the list. At the end of the day, carry any unfinished items over to the next day's list of six.
5. Repeat every workday.

The sample list as an Ivy Lee list, written Monday evening

1. Reply to the client's invoice question (C)
2. Finish the quarterly report draft (A)
3. Build Thursday's slides (B)
4. Book the dentist checkup (E)
5. Call the plumber (I)
6. Outline the offsite agenda (G)

The client reply comes first even though the report is bigger, because the client is waiting and your reply unblocks them. Ivy Lee makes you decide this the night before, when you're calmer, rather than in the middle of a busy morning.

The poll and the dry cleaning didn't make the six. In practice, most people handle one-minute chores in gaps between ranked tasks or keep a separate errands note. If the report runs long and you never reach items 4 to 6, they move to Wednesday's list. That's how the method is meant to work: the most important things still got done.

The weakness is rigidity. If your job is mostly reacting to incoming requests, staying on task 1 until it's done may not be realistic. Six large tasks can also be too many for one day.

How Getting Things Done handles capture and next actions

Getting Things Done is a complete system that David Allen describes in his book of the same name. It has five steps:

1. Capture everything that has your attention.
2. Clarify what each item means and what it requires.
3. Organize the results into lists.
4. Reflect by reviewing those lists regularly.
5. Engage by choosing what to work on.

Two of its ideas are useful even if you never adopt the whole system:

• Next action: the very next physical, visible step that moves something forward. "Quarterly report" isn't a next action. "Pull Q3 sales figures from the shared drive" is.
• Projects: anything that takes more than one action to finish. Projects go on a separate project list, and every active project should always have at least one next action.

GTD also has a two-minute rule: if an action takes less than two minutes, do it as soon as you clarify it. Items that need no action at all are trashed, filed as reference, or moved to a someday/maybe list.

The sample list clarified the GTD way

Context lists group actions by where or how you can do them. When you have ten minutes and a phone, you can see exactly which calls to make. The weekly review keeps the system reliable: once a week you go through every list, update your projects, and make sure each one has a next action.

GTD doesn't rank your tasks. It makes them doable and leaves the choosing to you, which is why many people pair it with a daily shortlist from one of the other methods.

Which to-do list method should you use?

You can also combine them. A common setup is to capture everything GTD-style, sort it with the Eisenhower Matrix during your weekly review, and pick each day's work with 1-3-5 or Ivy Lee. To stay focused once you've chosen, try timed work sessions like those in the Pomodoro Technique.

Why to-do lists fail and how to fix each problem

Vague tasks

Entries like "Taxes," "Mom," and "Website" remind you to worry but don't tell you what to do. Every time you read one, you have to work out the action again, which makes it easy to skip. Rewrite each item so it starts with a verb and names a specific object:

No next action

A project on a daily list can't be finished in one sitting, so it never feels done. It sits there day after day until it starts to feel like a failure. Keep projects on a separate list, and put only their next actions on your daily list.

Too many items

A 30-item list for one day guarantees that most items carry over, and constant carryover teaches you to ignore the list. Do a quick check: estimate the minutes each item needs, add them up, and compare the total with your free hours after meetings. If the list doesn't fit, cut it before the day starts, not at 5 p.m.

No review

Lists go stale. Finished items stay on them, irrelevant ones linger, and new commitments live only in your head. A short daily planning session and a longer weekly review keep the list an accurate picture of your work.

Quick reference: build tomorrow's list

The first time through, setting up project lists and rewriting every item takes a while. Once your lists are in place, the daily version usually takes only a few minutes.

• Dump every open item onto one page or into one inbox.
• Do anything that takes under two minutes right away.
• Rewrite each remaining item so it starts with a verb.
• Move multi-step items to a project list and write one next action for each.
• Mark important-but-not-urgent items and put at least one on your calendar.
• Choose tomorrow's work: up to six ranked items (Ivy Lee) or a 1-3-5 set.
• Estimate the total time and cut until it fits your free hours.
• Put the most important item first, and start there in the morning.

Frequently Asked Questions

Is a paper or digital to-do list better?

All of these methods work on either one. Paper is quick and has a natural size limit, which pairs well with Ivy Lee and 1-3-5. Digital lists are better for GTD-style capture, recurring tasks, and syncing between devices. The best choice is the one you'll actually check every day.

What's the difference between a to-do list and a calendar?

A calendar is for things tied to a specific time, like meetings, appointments, and blocks you've set aside for focused work. A to-do list holds actions you can do whenever you have time. Putting flexible tasks on your calendar crowds it, and putting fixed appointments only on a list means you can miss them. Many people keep both and move important tasks onto the calendar when they need protected time.

What should I do with a task I keep postponing?

If a task has carried over for several days, something about it usually needs fixing. It may be too vague, too big for one sitting, or not really your responsibility. Rewrite it as a concrete next action, split it into a smaller first step, hand it off, or delete it if it no longer matters.

Can a team use the Eisenhower Matrix or 1-3-5 list?

Yes. The Eisenhower Matrix is useful for team triage meetings, where the group agrees on what's urgent and important. Shared lists only work if every task has one named owner and a clear next action. Daily-limit methods like 1-3-5 and Ivy Lee work best as personal plans that each team member builds from shared priorities.