You've sat in this meeting. Your list is too long, so you walk into your manager's office and ask for help. An hour later you walk out with the same list, just arranged in a different order. Nothing was excluded. Nothing changed. Here's the question worth asking: was that actually prioritization?

In most cases, no. It's sorting. And sorting is not the same thing as prioritizing.

Sorting, planning, and prioritizing are not the same word

Sorting your list into "important," "really important," and "really, really important" feels productive. It isn't. That's just sorting.

Neither is deciding "do this first, then this, then this." That's just planning.

Both leave you exactly where you started: too much on the list, and not enough of you to go around.

What prioritizing actually means

Prioritization is excluding. It's deciding, deliberately, what you are not going to do.

There are good reasons we avoid it. Not enough time. Not enough money. Not enough resources. But there's one we almost always forget: not enough focus.

How to actually do it

Not a mindset. A procedure. Here's what it looks like in practice.

• Get it all down.

  Everything, on paper, out of your head. The instinct behind David Allen's "Getting Things Done." You can't make a conscious decision about a list you're only holding in your mind.

• Link every task to what it actually requires.

  Time. Money. Materials. People. This is the step almost everyone skips: we list what we want to do, without honestly connecting it to what it costs.

• Look at what you actually have.

  Your real, limited capacity. Not the capacity you wish you had.

• Draw the line.

  Where the resources required exceed the resources available, that's your line. Everything below it doesn't get pushed to the bottom of the list for later. It gets excluded.

The forgotten resource: focus

Time, money, and headcount are the resources we talk about. Focus is the one we forget, and it might be the most fragile of them all.

Think of it like a box of matches. A limited number of strikes. Each one lights a short, bright burn of real attention. Once it's gone, it's gone. You don't get more matches just because the day isn't over.

It's not just the big projects that burn through them. The "quick" task. The email thread. The meeting that "should only take ten minutes." Individually they look cheap. But each one still strikes a match.

You can recover from spending a little time or money on the wrong thing. It's much harder to recover the focus you already spent by the time you reach the task that actually mattered.

Buffett's rule, taken one step further

Warren Buffett's advice on goal-setting is well known: write down your top 25 goals, circle your top 5. The version worth using doesn't stop at one cut. It's a funnel: 25, then 10, then 5, then one.

Everything that fell away along the way isn't your someday list. It's your avoid at all costs list.

Numbers 2 through 5 survived three rounds of cutting. They're genuinely good, exciting, defensible, which is exactly what gives them the pull to take you off your actual number one. Dropping number 24 costs you nothing. Number 2 is the one that quietly eats your year.

At the company level

• Make it a resourcing conversation.

  Here's what we have. Here's what everything actually costs. So what do we choose not to do?

At the individual level

• Change what you walk in with.

  Instead of "everything on this list is important," try: "Here are the resources available, time, capacity, and focus. How do you want them spent?" It turns a debate about importance into a decision about where limited resources go.

The views expressed in this article are strictly the opinions of the author. It must not be seen as a reference with regards to the authorities' interpretation of regulatory guidelines or laws. No liability or responsibility of any kind (to the extent permitted by law) including responsibility for negligence, is accepted.