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Archives for 2025

40p paper bags

Dan Cullum · Apr 23, 2025 ·

Some of the big grocery chains here in the UK are now charging 40 pence for a paper bag.

The price is not reflective of the true cost to make the paper bag, it’s reflective of the behaviour change the supermarket wants to see in its customers.

There’s always more

Dan Cullum · Apr 22, 2025 ·

There’s always more to do. There’s always more you could’ve done. There’s always room for improvement.

Use it as fuel. Don’t let it be a weight that slows you down.

What really matters

Dan Cullum · Apr 21, 2025 ·

If you’re stuck—it could be a tough question from a leader, a complex trade-off your team is dealing with, or a problem you’re working through on a walk—it helps to ask: what really matters?

Don’t settle for the easy, obvious answer. Really wrestle with the problem and figure out the 1-2 things that need to be true to move the situation or problem forward.

Then do it.

If you still feel stuck the next day: repeat.

Find a puzzle worth solving

Dan Cullum · Apr 20, 2025 ·

One way to look at a career is to see it as a continuous sequence of puzzles.

Each new job, role, or opportunity is a different puzzle that has a unique set of characteristics.

Some are easy, some might be confusing, some may take a long time to solve. Some may be puzzles you’d happily work on in your free time, and others might be ones you’ll happily walk away from.

Seen through this light, one way to optimise a career is finding puzzles worth solving, and trying to find and solve more of these over time.

Dancing: rhythm and confidence

Dan Cullum · Apr 19, 2025 ·

A few months ago when Maru and I were in India for a wedding, we were part of a group of the bride’s university friends dancing at the Sangeet. The Sangeet is a pre-wedding celebration filled with music and dancing and celebrates the couple and the bonding of their families. It’s a spectacular event.

Most of the group were not natural dancers, and so we were all a little nervous.

I really liked this perspective on dancing from my friend Henny: dancing is about (1) rhythm, and (2) confidence. You don’t need to be a great dancer, and you don’t even need to get all the moves right, but if you can sync with the rhythm, and you have confidence, you don’t need to be afraid of something going wrong in front of a crowd. You’ll find your way.

Of course, dancing is much more complicated than rhythm and confidence, but for a very amateur non-dancer, I thought this was a useful way to approach the dance.

The hours before midnight

Dan Cullum · Apr 18, 2025 ·

I heard somewhere that the hours of sleep we get before midnight count as double.

Although not scientifically accurate—the first few hours of sleep are typically deep sleep, which is considered the most restorative—I think there is some second-order benefits to going to bed before midnight.

Many of us have commitments early in the morning, so after-midnight bedtimes likely mean that on average we’ll get fewer hours of sleep. So sleeping before midnight helps increase the window of available hours to hit the amount we need.

I often write about habits that I’m personally working to get better at. This is one of them.

Liberating disconnection

Dan Cullum · Apr 17, 2025 ·

I’m really glad that I had the experience of travelling during a time when telephone cards were still a thing. I caught the very tail end of that era.

When abroad, I would go to a local corner store and purchase a little plastic card with maybe 10 or $20 on it. I’d go to a payphone and your dial the number on the card, it would say how much balance I had left, and then I could call any number in the world for a certain rate per minute.

I’m really glad I had that experience. The disconnection was liberating.

Supplements, not sustenance

Dan Cullum · Apr 16, 2025 ·

Don’t confuse supplements for sustenance.

Vitamins or shakes support a healthy diet, they don’t replace it.

This is less a commentary on twice-a-day multivitamins than it is on the search for quick fixes.

Many people will try sell you an easy solution (taking a supplement), when what usually matters is consistently doing the hard work (sourcing and cooking your own sustenance).

Rarely faster, always riskier

Dan Cullum · Apr 15, 2025 ·

When I was in the car with Dad when I was a kid, he’d always point out if another driver was speeding, and he’d comment on how unnecessary it was. He explain how the driver would likely only save a few minutes by travelling at a dangerous pace.

Given the lifetime odds of death by automobile accidents is 1 in 95—which is an insane statistic in terms of what it says about our tolerance for death in return for the convenience of automobile travel—speeding is rarely faster, but always riskier.

The trade-off is never worth it.

Supply and demand dynamics

Dan Cullum · Apr 14, 2025 ·

Earlier this year I sold a few items I no longer needed on Facebook Marketplace. I checked the prices of similar items, and set my price at the average for comparable products: about £50.

After 24 hours, I had received no messages of interest, so I dropped the price by 20% to £40. All of a sudden my inbox was flooded with messages—it was a night and day difference. The theory bells from my Economics 101 less on the price elasticity of demand were ringing.

It’s impressive how fast these second-hand markets move and calibrate to an collectively agreed going rate.

Isolated incidents vs. patterns

Dan Cullum · Apr 13, 2025 ·

When I was a kid, there was a board game that was always advertised on TV, it was called ‘Mouse Trap’. It was “…one of the first mass-produced three-dimensional board games. Players at first cooperate to build a working mouse trap in the style of a Rube Goldberg machine. Then, players turn against each other to trap opponents’ mouse-shaped game pieces.”

It was super expensive, and wasn’t something I was about to ask my parents for. So when I went over to a friend’s home, and they had the game, I’d always ask if we could play it.

The funny thing was their response—every single friend—was always that Mouse Trap was broken. The game seemed to have a fundamental flaw that all its small moving pieces left it susceptible to breaking. Til this day, I think I may have only played the game once, and I’m pretty sure that one play through was on a broken set.

If it happens once, it’s an isolated incident.

If it happens all the time, it’s a pattern.

Throw it out

Dan Cullum · Apr 12, 2025 ·

Sometimes I’ll get 90% through a post, and it just feels wrong.

It may feel awkward, or lack direction, or may be missing a point.

The temptation is to push through, but at that point, it’s better to just throw it out.

When it comes to creative work, there are endless other ideas and variants we can pursue. Persisting with something that just doesn’t work does no one any good.

Determined, but flexible

Dan Cullum · Apr 11, 2025 ·

A few months ago, James Clear shared this thought in his newsletter.

“If you do not bend, you will break.
The adaptable prevail. Determined, but flexible.”

In particular I liked the idea that it’s good to be ambitious, aggressive, and determined with our goals, but to remain open to plans changing as new information emerges.

New experiences

Dan Cullum · Apr 10, 2025 ·

One thing that Maru and I have been consistent with since we met was our prioritisation of experiences over things.

The familiar is comforting, but there are an innumerable number of places to go, foods to taste, people to meet, and activities to try. And we know there won’t be enough time to even scratch the surface of all that the world has to offer.

And the best part is that as we experience new things together, we grow together.

Waiting all day for the shot

Dan Cullum · Apr 9, 2025 ·

On a flight earlier this year I started watching BBC’s Planet Earth. David Attenborough’s smooth voice coupled with stunning cinematography of the natural world is the perfect escape whilst hurtling in a metal tube around the world.

When I see incredible nature videography, it reminds me of the stories and lessons a nature-focused filmmaker friend has shared with me over the years. Firstly, all the good shots happen at sunrise and sunset. And secondly, if you need to wait eight hours in the rain and cold for that bird to pop it’s head out of it’s nest, you need to wait eight hours in the rain and cold.

I loved the commitment and simplicity with which he spoke about getting the perfect shot. And it felt like many of the shots in Planet Earth required that level of commitment, which is likely what makes it such a compelling watch.

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