Trade Offs by Julia and Thomas Berolzheimer

Trade Offs by Julia and Thomas Berolzheimer

10x Thinking

A framework for thinking bigger about every dollar you spend

Julia & Thomas Berolzheimer's avatar
Julia & Thomas Berolzheimer
Feb 24, 2026
∙ Paid

Most people make spending decisions the same way: they look at the price and decide if it feels too expensive.

I think that’s the wrong perspective and here’s why.

A $500/month tool is cheap if it brings in $5,000. A $15/month subscription is expensive if it sits unused. The price tag tells you nothing. The return tells you everything.

This one idea — something is only expensive if the ROI is low — has shaped every major decision I’ve made in business. Tools, hires, partnerships, even the stuff Julia and I disagree on. It’s the reason our businesses have grown every single year.

I call it 10x thinking. And once you see it, you can’t go back to thinking small.


This post is for paid subscribers. If you want access to the frameworks behind how we make decisions across Julia’s brand, Coreli, and everything else we’re building — this is what you’re paying for.

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