Lesson 4 of 6 · 9 min
Pick an idea that fits you
You have a few ideas. Now choose the one that matches your skills, time, money and interest — and that you can ship fast. Use a simple 2x2 to decide.
By now you may have two, three, even five ideas. That is a good problem. But you can only build one first. This lesson gives you a simple filter: pick the idea that fits your skills, your hours, your wallet and your energy — and that you can ship fastest.
Here is a secret from the founders in our library: the winning idea was rarely the most original one. It was the one the founder could actually finish. Louis Pereira failed with about 15 projects before Audio Pen worked. What changed? He stopped betting years on one big idea and started shipping tiny tools fast — one of them in 12 hours. Fit beats brilliance.
$15K/mo
Reported monthly revenue
1 days
Days to first version
Cursor Directory
Source: My website makes $35K/month (built in 3 hours)$37K/mo
Reported monthly revenue
Notion Forms
Source: How I Built It: $37K/Month Notion App$11K/mo
Reported monthly revenue
Look at those numbers. A directory built in about three hours. An app launched in 12 hours. These were not small outcomes — they grew into real monthly revenue. Speed is not the enemy of quality. Speed is how you find out if anyone cares, before your money and motivation run out.
How to read it: demand is 'clear' when you have already seen proof — people paying for something similar, asking for it, or committing to use it. Effort is about YOUR situation: your skills, your tools, your hours. The same idea is easy for one person and hard for another. Julien Nahum shipped a form builder MVP in six days because he was an engineer reusing his old code. For a non-coder, that same idea might take months.

Case study
Julien picked an idea that fit his skills — and shipped in six days
What they did first
- Used his three-hour daily commute for side projects instead of quitting his job
- Chose a narrow problem on Notion, a platform whose users already existed
- Reused code from earlier projects so the MVP took days, not months
Take this with you
He did not pick the biggest idea. He picked the one he could build fast with what he already had — and it grew to about $37K a month.
Score each idea in 15 minutes
Step 1: List your ideas
Write each idea on one line. If you have ten, keep only the five you keep thinking about.
Step 2: Rate demand: clear or unclear
Clear means you saw proof in earlier lessons: people already pay, ask, or commit. Unclear means you are guessing. Be honest.
Step 3: Rate effort: easy or hard for YOU
Can you build a first version in days or weeks with tools you know? Or does it need skills, money or people you do not have yet?
Step 4: Place each idea on the matrix
Top-left is your winner: easy for you, demand is clear. Bottom-right is a trap: hard and unproven.
Step 5: Check your interest
Interest = fuelAsk: can I work on this most days for a year? Christian built his wishlist app in mornings and evenings for years. Boring ideas you love beat exciting ideas you abandon.
Step 6: Pick one and park the rest
Write the winner down. Put the others in a 'later' list. You are not deleting them — you are focusing.
Fits you (pick this)
- Uses skills or tools you already have
- First version possible in days or weeks
- You can reach the customers directly
- You would enjoy it even if growth is slow
Doesn't fit yet (park it)
- Needs money, hires or skills you lack
- Months of building before anyone sees it
- Customers you cannot reach or talk to
- You are only excited about the money
“distill it down to the core feature set, test it, build an audience, but don't over complicate it”
Your turn
20 minRun your own matrix
Take a page and draw the 2x2: effort to build (right = more) vs clarity of demand (up = more). Write up to five of your ideas on sticky notes or small scraps. Place each one. Then answer in one line each: Which sits top-left? Can I build a first version of it in under two weeks? Can I name ten real people who might use it? Circle your winner.
What you'll have at the end
A photo or sketch of your matrix with one idea circled as your pick
Key takeaways
- Fit beats brilliance: pick the idea you can actually finish, not the fanciest one.
- Use the 2x2: easy for you to build + clear demand = build first.
- Effort is personal — your skills, tools and hours decide what is 'easy'.
- Interest is fuel: choose something you can work on most days for a year.
- Park the other ideas on a 'later' list. Focus is a decision, not a deletion.
Where this comes from

From zero to $15K a month in 12 hours: the Audio Pen story
Louis Pereira · Audio Pen
Watch on SuperBuilder
My website makes $35K/month (built in 3 hours)
Pontus Abrahamsson · Cursor Directory
Watch on SuperBuilder

From Zero to $11K/Month: A 19-Year-Old's First SaaS in 5 Months
Vadim Strizheus · Vugola
Watch on SuperBuilder
From Idea to $20K/Month App in 83 Days: The Validation Playbook
Brian Shin · Once
Watch on SuperBuilder
This App Replaced My 9-5 ($150K/Year): The Simple Wishlist Playbook
Christian Konnerth · Wishlists
Watch on SuperBuilder

From side project to $15K a month: how Ben Bozzay quit his 9-to-5 job
Ben Bozzay · Tech Lockdown
Watch on SuperBuilder
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