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  • 11-APR-2026 | Sainsbury’s “Pentland Crown” Ad

11-APR-2026 | Sainsbury’s “Pentland Crown” Ad

The Vault from Copywork365

The swipe file is dead.

Literally, and maybe figuratively as well.

When I first started working on this project, I gave it the working title, Toolbox. The simple tagline was: the swipe file on roids.

But the more I worked on it, the more it became clear that this wasn’t just a box of tools. Calling it a swipe file wasn’t accurate, either. Roided up, or otherwise.

Because at its core, the swipe file is merely a collection of pictures or text. A pile, in other words.

This thing behaves more like a navigable map.

And no matter how much stuff you hoard into a swipe file, its contents are inert.

This, on the other hand, grows deeper over time. Its contents are living.

So, henceforth, this will be known as…

New illustration — credit Pranav Venkitaraman.
Big thank you to Pranav!

The Vault is an atomic copywriting database. As far as I know it’s the first of its kind, so that’s what I’m calling it.

It’s a database of world-class excerpts just like the ones we cover right here on the daily. Spanning ad copy, webpage copy, and literature.

Each excerpt is x-rayed and dissected to reveal what makes everything tick, how it works — on the most granular level. (Hence, atomic.)

It covers all the tools, techniques, and psychology we touch on here, but in their full depth. Making it easy to master these “devices” and then apply them to your own persuasive writing. You can even filter by author or brand to steal the secret sauce from your very favorite writers, copywriters, and brands.

Same as before, I’ve still got a forever deal for you.

If you join the waitlist below, you get exclusive lifetime access for an ultra-low flat fee when The Vault launches. (It’s looking like Q1 or Q2 of 2026.)

After all, a sweetheart deal is the least I can do to thank you for your support.

And as I’ve mentioned before, yes, I really do mean lifetime.

Even if the internet ceases to exist. I’ll toil day and night to make sure you receive a physical copy. With however many thousands of excerpts this accumulates over its lifetime.

Pinky promise.

Sainsbury’s “Pentland Crown” Ad

This is a Pentland Crown, the most widely grown potato in Britain. Sainsbury’s refuse to sell them.

They turn grey and crumble when you boil them.

They go soggy when you mash them. And they make very poor chips.

Indeed we think they’re not much good for anything.

Yet, in many places, if you simply ask for potatoes, there’s a good chance that Pentland Crown is what you’ll be given.

Heaven knows why, for there are so many other varieties that, in our opinion, are better in every way.

And we pride ourselves that we understand a thing or two about potatoes. 🏁

A great example of twisting the knife on an experience we’ve all had: mediocre potatoes. Thought leadership on “this isn’t good enough” points to the seed of “Sainsbury’s doesn’t settle.”