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Test it before you build it

by Izhar Shah
Sep 21, 2026

Read time: 4 minutes

The most expensive mistake in building extra income is not laziness. It is building something carefully, for months, that nobody wanted. And it is completely avoidable, with one evening of honest checking.

This week I am sharing a piece of thinking taken straight from my paid step-by-step guide for the e-commerce path. A path is the way you have chosen to earn. There are four: e-commerce, digital products, freelance work, and content. I am giving you this part in full and for free, because it is too important to keep behind a price. It is written for products, but the same test works on every path, and I will show you how at the end.

The test: three questions before you commit

1. Is anyone already paying for this?

This question feels backwards. Most people look for an idea nobody has done. But an empty market is usually empty for a reason. If people are already buying something like your idea, that is not bad news. That is proof the money exists.

Spend thirty minutes searching where your buyers shop. Count the sellers. Read the reviews. Existing sales are the strongest evidence you can get without spending any money.

2. Can you reach the buyers?

A good product with no way to reach its buyers is not a business. It is a hobby. So ask: where do these buyers already go? A marketplace, a search engine, a community, a type of workplace? If you can name the place, you can reach them. If you cannot name it, stop and find it before you build anything.

3. Do the numbers work at a small size?

Take your selling price. Take away every cost: the product, the fees, the delivery, the returns. What is left from one sale? Now ask how many sales a normal month could really bring. Multiply. If the answer is disappointing at a small size, it will still be disappointing at a big size, only with more stress.

Do this on paper, with real numbers, before you spend. Ten minutes of multiplication has saved people years.

The test in action

Here is a quick example, so you can see it working. Imagine you want to sell lunch boxes for office workers, the kind that keep food warm.

Question one: are people already paying? A search on any big marketplace shows thousands of reviews across many sellers. Money confirmed.

Question two: can you reach the buyers? Yes, and you just did. They shop on that same marketplace. You do not need followers to be where they already are.

Question three: do the numbers work? Say the selling price is £24. The product costs £8, fees take £4, delivery takes £3. That leaves £9 from each sale. If a realistic first month brings forty sales, that is £360. Small, but real, and it grows with reviews. The idea passes.

Now change one number. If the product cost £15 instead of £8, each sale would leave £2, and forty sales would bring £80. Same idea, same market, failed numbers. That is why you multiply before you build.

Pass, fail, or fix

Three questions, three honest answers. If all three pass, build with confidence: you are entering a real market you can reach, with numbers that work. If one fails, do not throw the idea away. Fix that one thing. A different product in the same market. A different place to reach buyers. A higher price or lower cost.

Only when an idea fails all three should you let it go. And even then you have lost one evening, not one year.

The same test on the other paths

This is why I wanted to share this piece: it is not really about products.

Digital products: are people already buying templates or guides on your subject? Where do they buy them? What is left after platform fees?

Freelance: are companies already paying for your skill? Where do they look for help? Does your rate, times realistic hours, reach your goal?

Content: are creators already earning in your subject? Which platform do their viewers use? How many viewers would you honestly need?

Same three questions. Different words. One evening.

And notice what the test does not ask. It does not ask if the idea is exciting, or new, or impressive. Boring ideas that pass the three questions build income. Exciting ideas that fail them build stress.

Your homework

Take your current idea, or your best guess at one, and run the three questions tonight. Write the answers down, do not just think them. Ideas feel stronger in your head than they look on paper. Write them down and you see them honestly. If the idea passes, you build next week knowing it is sound. If it fails, you just saved yourself months, and that is a good result too.

Coming next Monday

Since launch, people have been answering the same simple questions about their time, money and skills. Next week I will show you what the overall patterns reveal, and why you are more normal than you think.

See you then.

Izhar

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