To manage an infinite stream of feature requests for their horizontal product, Missive's founders relied on a simple filter: "Would I use that myself?" This strict dogfooding approach allowed the bootstrapped team to stay focused, avoid feature bloat, and build a product they genuinely loved using.

The Peak AI team rapidly cycled through ideas by attempting to sell the vision before building anything. A lack of buyer excitement was a clear signal to abandon an idea within 2-3 weeks, avoiding wasted engineering effort.

To find the right market, Gamma's seven-person team spent six months building and using two different products in parallel: a virtual office and an AI presentation tool. This macro A/B test on the company's entire direction helped them commit to the idea with the highest potential.

Obsessed with their innovative new format, Gamma's team ignored early user signals and delayed building a crucial PowerPoint export feature. This mistake stemmed from prioritizing their own vision and building for a future 'moat' before first winning adoption within existing user workflows.

The decision to delay a product to fix a design flaw was easier because the team had recently killed another product that failed due to a weak value proposition. This painful, shared experience created organizational readiness to prioritize getting the product right over hitting an arbitrary deadline.

Stanley stopped developing his advanced design tool, Effecto, after realizing he wasn't using it himself. His personal workflow had evolved to simpler tools like TL Draw paired with AI agents, revealing a critical product-founder disconnect despite the tool being feature-rich.

For core product changes, Granola eschews quantitative A/B testing in favor of qualitative gut feel from intensive internal use. By building prototypes and having the entire team use them in their own chaotic workdays, decisions are made based on collective intuition about what *feels* better.

Many founders become too attached to what they've built. The ability to unemotionally kill products that aren't working—even core parts of the business—is a superpower. This prevents wasting resources and allows for the rapid pivots necessary to find true product-market fit.

The Codex team's core mandate was to create a tool they loved and used daily for their own development. This intense dogfooding—including building the app on itself—served as the ultimate validation and quality bar before they considered shipping it externally.