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Chris Koerner on The Koerner Office Podcast
The Most Profitable Solo Business You’ve Never Heard of
2 min read5 May 2026Worth watching
TL;DR
Brett Williams built Design Joy, a productized design service, earning up to $200,000/month in net profit as a solo operator with no team. This video breaks down the productized services business model and why it can be applied to any digital skill — design, copywriting, social media management, and more.
Key points
1
Brett launched Design Joy on a Sunday via Product Hunt with no audience and made $10,000 in recurring revenue by Monday
2
He kept his $75,000/year day job for 4 years while his business scaled to $80,000/month in net profit before quitting
3
Peak revenue hit $200,000/month with expenses of only around $1,000/month, making it an extremely high-margin solo business
4
Clients pay $6,000/month before ever speaking to Brett — no sales calls, no proposals, no back-and-forth quoting
5
The productized model works by selling a service off-the-shelf like a product, reducing time-to-value and eliminating friction from the buyer journey
Actionable insights
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Productize any digital skill — design, copywriting, social media management — by setting a fixed price and letting customers buy instantly online without calls or proposals
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Launch on Product Hunt to get initial traction with zero audience; Brett went from idea to launch in a single weekend
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Keep overhead ruthlessly low — Brett runs a business generating $60,000-$80,000/month in profit with only ~$1,000/month in expenses
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Do not quit your day job prematurely — Brett waited until his business was making more per month than his salary was per year before leaving
Notable quotes
“On a Friday, I had the idea. On a Saturday, I built the thing. On a Sunday, I launched it on Product Hunt. And on Monday, my life was not ever the same.”
“I held my full-time job until I was making 80,000 a month and then I quit.”
“You go to the website, you buy the service, you pay for it, and then you can consume it.”
Worth watching?
✅
Worth watching the full video?
Worth watching if you want the full list of specific productized service ideas Brett recommends copying — the core model and Brett's story are captured here, but the additional business examples he promises are not in this transcript excerpt.
Saved you some time? The creator still deserves a like.
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