I’ve been in marketing for 12 years.

But this one habit — a one-line prompt after calls — has improved my messaging more than any strategy I’ve ever used.

This is how I built a self-updating customer insight system I now use for content, sales copy, and even product design ↓

After every one of my calls I run a really simple prompt that pulls out what I call ‘Voice of Customer’ quotes.

→ Direct quotes from my clients about their struggles, aspirations and experiences.

The process is stupidly simple (no fancy prompts here):

"Pull out all the direct voice of customer quotes from this transcript."

That's it. Sometimes I'll get specific ("find quotes specific to Tana or my teaching style"), but the prompt stays simple.

All those quotes get added to a growing bank of customer insights in Tana and it’s CRAZY how insightful they have been in so many ways:

• Pattern Recognition: I regularly scan the quotes looking for common struggles. Are multiple people hitting the same roadblock? That's a new product opportunity.

• Marketing That Actually Resonates: When I'm writing sales copy, I have a bank of real customer language to pull from. No more guessing what words they use.

• Content Ideas: My quote database is an endless source of content ideas. Real problems = real content opportunities.

• Always-Updating Knowledge Base: I feed these quotes into my custom GPTs for product development and marketing. Everything I create now sounds more aligned with my customer because it's built on their actual insights.

• Connected to my work & ideas. I regularly connect quotes to ideas or products I’m developing, so they pop up when I’m working on those projects which always helps to keep my grounded while working.

Ultimately, I feel more connected to my customers than ever.