Operator notes

What the numbers taught me.

First-hand lessons on profitable growth, commerce economics, product, customer experience and AI, drawn from building and operating consumer businesses rather than observing them from the sidelines.

More field notes

07
02Commerce economics · ISTO.

The €74K shipping leak: why international revenue can hide unprofitable growth

Across 1,147 non-EU orders, the problem was not a lack of sales. Revenue, shipping income, carrier invoices, duties and taxes lived in different systems, so nobody could see the complete order economics.

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03Product & portfolio · Bearaby

A product roadmap is a capital-allocation decision, not an ideas list

The job of a roadmap is not to capture every attractive opportunity. It is to show which bets deserve scarce product, sourcing, inventory and go-to-market capacity, and in what sequence.

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04AI & decision systems

AI should investigate your business, not just summarise the dashboard

The highest-value use of AI in commerce is not writing another weekly recap. It is connecting fragmented evidence, testing explanations and showing the operator where a decision is required.

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05D2C growth · Updated edition

D2C growth starts with a customer problem, not a channel hack

A product can travel across channels and markets when it solves a clear problem, keeps its economics intact and adapts the execution without losing the original customer promise.

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06Performance marketing · Updated edition

How to build marketing campaigns you can profitably scale

A five-step operating method for connecting customer insight, creative testing and channel investment to contribution, not just the revenue reported by an advertising platform.

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07Brand and growth · Updated edition

Why branding is a commercial system, not a layer of communication

A useful brand sharpens the choice for customers and teams. That coherence can improve conversion, protect price and make every acquisition euro work harder.

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08Efficient growth · Updated edition

You do not need a huge marketing budget. You need a sharper growth system

Limited capital can force useful choices: a narrower audience, a clearer promise, better creative learning and a channel mix the business can actually sustain.

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What I write about

01Profitable growth

02Commerce economics & operations

03Product, brand & customer experience

04AI & decision systems

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