TAM SAM SOM: A Founder's Guide to Market Sizing
TAM, SAM, and SOM explained for founders: what each metric means, how to calculate them top-down and bottom-up, real examples, and mistakes to avoid.
The GRILLR Blog
Execution advice for founders
No theory theatre. Read the playbook, do the work, and let weak ideas die before they eat the month.
PRD Examples: A Practical 2026 Guide for Founders
Real PRD examples and templates for founders: what a product requirements document must contain, mistakes to avoid, and how to write one that ships.
What Is the Grillr Masterplan? How It Works
What the Grillr Masterplan is and how it works: phased execution plans with real deadlines, a locked Validation phase, proof-based grading, and free hosting.
How to Smoke Test a Startup Idea Before Building an MVP
How to smoke test a startup idea with a landing page, offer, traffic, and conversion goal before building an MVP nobody asked for.
Startup Validation Checklist: 9 Tests Before You Build
A practical startup validation checklist with 9 tests to prove demand, willingness to pay, and urgency before you waste months building.
Customer Interview Questions for Startup Validation
The best customer interview questions for startup validation, plus what not to ask, how to spot weak signals, and how to turn interviews into evidence.
First-Time Founder Mistakes: The 7 That Actually Kill Startups
The 7 first-time founder mistakes that actually kill startups, from building in silence to having nobody check your work, and how to dodge each one.
How to Build a Startup While Working Full Time (Without Burning Out)
How to build a startup while working full time: real hours math, scope that fits your life, and the accountability system that stops the quiet drift.
Why Most Side Projects Fail Before They Ever Launch
Why do side projects fail? It is almost never the idea. Here are the real reasons side projects die before launch, and how to actually ship yours.
How to Stay Accountable When Building a Startup Alone
How to stay accountable as a solo founder: practical systems for deadlines, proof of work, and external pressure when nobody else is watching.
How to Stop Over-Planning and Actually Start Building
How to stop overplanning and start building: why planning feels productive but is not, and the concrete steps to break out of analysis paralysis.
How to Validate a Business Idea Before You Waste Months Building It
How to validate a startup idea before building: cheap, fast ways to find out if anyone will pay, so you do not waste months on something nobody wants.
The Best AI Accountability Partner for Founders (2026)
The best AI accountability partner for founders in 2026: what these tools actually do, what to look for, and why Grillr is the one worth your time.