Our world is overflowing with distractions, and the ability to prioritise what truly matters has never been more critical. Our attention is constantly pulled in every direction. Emails, surprise meetings, and last-minute demands all compete for our limited time. In this whirlwind, learning to prioritise has become a survival tool.

Each day feels like a tug-of-war. We juggle deadlines, personal commitments, endless notifications, and the pressure to stay productive. Separating the truly important from the seemingly urgent becomes an uphill battle. The result? We feel overwhelmed and out of sync with what matters.

We begin our mornings with the best intentions. Armed with a to-do list. We aim to tick off our tasks one by one. But as the day unfolds, chaos takes over. Emails flood in. A colleague interrupts. Something urgent derails our focus. And our plan? It slowly unravels.

By evening, we are exhausted yet strangely unaccomplished and asking ourselves, did we actually prioritise the work that moves the needle?

Why does this happen? Why is it so hard to stay focused on what’s essential?

In this article, we dig into these questions and explore a simple but powerful tool that just might change how we work.

Perpetually Cluttered To-Do Lists

We add tasks to our To-Do Lists without any filter. Big or small, urgent or irrelevant, everything finds a place, simply because jotting it down makes us feel productive. But without a clear strategy, that list quickly turns into a dumping ground for whatever crosses our mind.

Today, the volume of information and demands is unprecedented. Every notification, every passing request, feels like it deserves our attention. We find it increasingly difficult to prioritise between meaningful goals and momentary distractions.

This lack of clarity creates chaos. Our To-Do Lists grow messy and overwhelming. Without a guiding principle, we don’t prioritise, we just accumulate. And in doing so, we lose sight of what truly matters.

Loss of Focus

Our focus is often the first casualty when we fail to prioritise.

When our attention is scattered across a dozen competing demands, we struggle to give any one task the sustained effort it deserves. We bounce from one thing to the next, constantly switching contexts, which drains our mental energy.

It’s like trying to read a complex book while checking our phone, listening to music, and carrying on a conversation. Our brains aren’t built for effective multitasking. Each time we shift gears, we pay a “switching cost”. It takes time and effort to refocus and regain momentum.

“Multitasking is a lie. It’s an effective way to get less done.”

Gary Keller – The ONE Thing

This ongoing fragmentation makes deep work nearly impossible. Without focus, we can’t reach that state of intense concentration required to solve complex problems or deliver high-quality results.

The ‘One Thing’ Rule

The ‘One Thing’ Rule is stunningly simple. It asks a single question:

“What’s the ONE thing I can do today such that by doing it, everything else will be easier or unnecessary?”

That’s it.

The essence of this rule is: To achieve extraordinary results, we must narrow our focus to one thing, and one thing only, at a time.

For example, let’s consider a marketing manager who has a myriad of tasks:

  • Respond to 50 emails
  • Schedule social media posts for the week
  • Prepare a presentation for next month’s board meeting
  • Conduct market research for a new product launch
  • Review team performance reports

Applying the ‘One Thing’ Rule, the manager would ask: “What’s the ONE Thing I can do such that by doing it, everything else will be easier or unnecessary?”

After careful consideration, they might determine that “Conducting market research for a new product launch” is their ONE Thing. Why?

Because, the insights gained from this research will form the social media strategy, provide crucial data for the board presentation, and guide future email communications and team objectives. If they nail the market research, the other tasks become clearer, more effective, or even unnecessary in their current form.

Please note that it is not about ignoring everything else. It’s about sequential prioritisation. We identify and prioritise the single most impactful task and we dedicate our energy and focus to completing that one thing before moving on to anything else.

Why It Works

The beauty of the ‘One Thing’ Rule is its simplicity. Instead of helping us manage a long to-do list, it asks us to cut through the clutter and find the one task that truly matters.

It works because it:

  1. Clears the Noise: No more staring at a long, confusing list. Just pick the one task that counts.
  2. Makes Us Think: Asking “What’s the ONE Thing?” pushes us to find the core task, the one that will move everything else forward.
  3. Boosts Deep Work: When we commit to just one task, we give it our full focus. It means better and faster work.
  4. Builds Momentum: Finishing your ‘One Thing’ feels great. It creates a rhythm. One win leads to the next ‘One Thing’.
  5. Simplifies Choices: New tasks and distractions come up all the time. The ‘One Thing’ Rule gives us clarity. Does this help with my one thing? If not, we can skip or delay it.
  6. Beats Procrastination: When our most important task is clear and we’ve decided to start with it, it’s much easier to stop putting things off.

Extraordinary results are directly determined by how narrow you can make your focus. When you spread yourself out, you end up spread thin.”

Gary Keller – The ONE Thing

While other tools help us organise tasks, the ‘One Thing’ Rule goes further. It helps us focus. It changes the question from “What all do I need to do?” to “What’s the one thing that really matters right now?”

Practical Applications of The ‘One Thing’ Rule

Applying the ‘One Thing’ Rule requires intention and a commitment to prioritise ruthlessly. Here’s how we can integrate it into various aspects of our lives:

1. Daily Work

Every morning before diving into our inbox, we take 5-10 minutes to ask: “What’s the ONE Thing I can accomplish today that will have the biggest impact on my most important goal or project?” It might be completing a specific section of a report, making a critical sales call, or brainstorming a solution to a specific problem. Once identified, we dedicate our first block of focused time to this ONE Thing. Only after significant progress or completion do we move to other tasks.

2. Weekly Planning

On Sunday evening or Monday morning, we review our overarching goals. We then ask: “What’s the ONE Thing I can achieve this week that will significantly advance my most important long-term objective?” This might be securing a key client, completing a specific module of an online course, or finalising a critical budget proposal. Once identified, we schedule dedicated time blocks for this ONE Thing throughout the week, ensuring it is prioritised and it receives consistent attention.

3. Career Goals

We ask, “What’s the ONE Thing I can do this quarter/year that will most significantly move me towards my career aspiration?” This could be completing a specific certification, networking with three key industry leaders, or taking on a stretch assignment that builds a crucial skill. We then break down this ONE Thing into smaller, actionable steps and integrate them into our weekly and daily ONE Things.

4. Life and Well-being

We ask, “What’s the ONE Thing I can focus on right now that will improve my overall well-being or personal happiness?” This might be to prioritise 30 minutes of exercise daily, spending quality time with a loved one without distractions, or dedicating an hour to a hobby we enjoy. We then build our schedule around protecting this ONE Thing.

5. Complex Projects

Instead of trying to tackle everything at once, we break down the project. We then ask, “What’s the ONE Thing I need to accomplish first that will make the rest of the project easier or clearer?” This might be defining the project scope, gathering essential resources, or getting approval on a critical design element. This initial ONE Thing acts as the key foundational step.

6. Learning a New Skill

We ask, “What’s the ONE Thing I can practice or learn today/this week that will most improve my foundational understanding or fluency?” For a language, it might be mastering the 100 most common verbs. For an instrument, it could be consistently practising a fundamental scale or chord progression. We dedicate focused, consistent time to this ONE Thing, building mastery incrementally.

If disproportionate results come from one activity, then you must give that activity disproportionate time.”

Gary Keller – The ONE Thing

Further Reading

To delve deeper into the power of focused attention and how to prioritise, I highly recommend:

1. The ONE Thing by Gary Keller and Jay Papasan

This is the definitive guide to the ‘One Thing’ Rule, offering a clear framework and compelling arguments for its effectiveness.

2. Deep Work by Cal Newport

This book powerfully articulates the value of deep, uninterrupted work and provides strategies for cultivating it, which is a natural outcome of applying the ‘One Thing’ Rule.

3. Eat That Frog! by Brian Tracy

A no-nonsense guide to conquering procrastination by tackling the most important task first each day. It narrated how prioritised and focused action is key to productivity and success.

Failing to Prioritise Correctly

The consequences of poor prioritisation can range from minor inconveniences to catastrophic failures. History and personal experiences are rife with examples.

1. The Challenger Space Shuttle Disaster

Nasa Prioritise

Failure to prioritise vital engineering concerns was a key cause of this disaster. Engineers had flagged the O-ring seals’ risk in cold temperatures, but those warnings were downplayed in the rush to meet the launch schedule. Decision-makers overlooked long-term consequences to prioritise deadlines over safety. A costly error that led to the loss of seven lives.

2. Kodak Missed Moment

Kodak

Kodak invented the first digital camera; however, they failed to prioritise this nascent technology, fearing it would cannibalise their highly profitable film business. They ignored the innovation that would ultimately disrupt their industry. The failure to prioritise future trends over present profits led to their eventual downfall and bankruptcy.

3. BlackBerry’s Downfall

BlackBerry Prioritise

BlackBerry, focused on enterprise security and physical keyboards, underestimated how much consumers would embrace touchscreens and app ecosystems. While Apple was reshaping the mobile experience, BlackBerry doubled down on what had worked in the past. The result? A rapid decline in market share and relevance. They failed to prioritise innovation over tradition.

Conclusion

Our cluttered to-do lists, scattered attention, and the constant demands of modern life often derail both our productivity and peace of mind. In such a world, the ability to prioritise is no longer a luxury; it’s a necessity. Traditional methods used to prioritise rarely cut through the noise in a meaningful way.

The ‘One Thing’ Rule presents a refreshing and powerful alternative. It urges us to pause, reflect, and focus on the single most impactful action we can take. It’s a simple shift, yet it brings remarkable clarity, greater productivity, and a lasting sense of accomplishment. It frees us from the tyranny of the never-ending list and puts our energy where it matters most.

So, start today.

Choose your one thing, and let it lead you toward focus, fulfilment, and real progress.

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One response to “Prioritise Like a Pro: Why the One Thing Rule Always Works”

  1. Great insight

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