They search for the next viral app.
The next AI startup.
The next "Uber for X."
Meanwhile, someone is quietly making $20,000 a month selling an Excel template.
The internet rewards useful more than it rewards exciting.
The businesses below aren't glamorous. They won't get you invited onto podcasts. Your friends probably won't understand them.
But they solve real problems, have low running costs, and many can be built by one person.
Let's dive in.
1. Spreadsheet Templates
People pay for spreadsheets that save them time.
Think:
Budget planners
CRM systems
Startup financial models
Wedding planners
Social media calendars
Inventory trackers
Build once.
Sell forever.
Platforms like Etsy, Gumroad and your own website make distribution easy.
2. Industry Databases
Someone spends months collecting useful information...
...then charges for access.
Examples include:
VC databases
PR journalist lists
SaaS directories
AI tool collections
Influencer databases
Local supplier directories
The value isn't the software.
It's doing the research nobody else wants to do.
3. Calculators
People love calculators because they answer one question instantly.
Examples:
Salary calculator
Mortgage calculator
ROI calculator
Pricing calculator
CAC calculator
AI savings calculator
They also rank well in search because people are actively looking for answers.
One simple calculator can generate traffic for years.
4. Notion Systems
Not everyone wants to build their own workspace.
Popular products include:
Business operating systems
CRM templates
Content planners
Habit trackers
Knowledge bases
Client portals
Once someone adopts your system, they're surprisingly loyal.
5. Checklists
Sounds boring.
But people pay to avoid forgetting something important.
Think:
New employee onboarding
Buying a house
Launching a SaaS
Starting a podcast
Wedding planning
Moving home
Simple products can solve expensive mistakes.
6. Prompt Libraries
AI is everywhere.
Most people still don't know what to ask.
Curated prompt packs for specific jobs are becoming digital products of their own.
Examples:
Marketing prompts
Sales prompts
HR prompts
Legal prompts
Customer support prompts
The niche usually wins.
7. Email Swipe Files
Businesses always need emails.
Collections of proven:
Welcome sequences
Cart recovery emails
Cold outreach
Sales emails
Newsletter ideas
These save businesses hours every week.
8. Job Interview Packs
Interview questions.
Answer frameworks.
Salary negotiation guides.
Company research templates.
People happily spend money if it helps them land a better job.
9. SOP Libraries
Every growing business needs Standard Operating Procedures.
Few enjoy writing them.
Imagine selling ready-made SOPs for:
Agencies
Ecommerce brands
Restaurants
Dental practices
Construction firms
The customer edits instead of starting from zero.
10. Tiny SaaS Tools
Not every SaaS needs funding.
Some solve one annoying problem.
Examples:
PDF converters
QR code generators
Image resizers
URL shorteners
Meeting note cleaners
Invoice generators
Charge a small monthly fee.
Repeat hundreds or thousands of times.
The Pattern
Notice what these businesses have in common.
They don't depend on followers.
They don't require millions of users.
They don't need venture capital.
They solve one problem for one specific audience.
That's often enough.
People don't buy "cool."
They buy convenience.
If I Had to Pick One
I'd build an industry database.
Here's why.
Most people underestimate how valuable curated information is.
AI can help collect, clean and organise data faster than ever.
Once the database exists, you can expand it into:
A newsletter
A membership
A job board
Sponsorships
Premium reports
Consulting
One asset can become multiple income streams.
Your Turn
If someone gave you 30 days to build one of these businesses...
Which would you choose?
The best ideas often come from the most boring problems.