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How-to · Startup

Quick, cheap tests for a business idea before you spend

Prove that people will pay before you spend lakhs. Here are quick tests for a new idea.

Proof Before You Spend cover
Quick tests ask customers to act: book, pay a deposit, buy a sample. They cost a few thousand rupees and give far stronger evidence than conversations.
The idea

Six quick tests

A quick test puts a real offer in front of real customers and measures what they do. Choose the one that tests your most dangerous guess most cheaply.

TestHow it worksGood for
Booking or pre-order pageA simple page or form describing the offer, taking bookings or depositsServices, products not yet made
Sample batchMake a small batch and sell itFood, crafts, garments
Pop-upA stall, demo or one-day shop where customers can buyRetail, food, consumer services
Do it by handDeliver the service manually before building any systemApps, platforms, subscriptions
Letter of intentA business customer signs a letter saying they will buy on stated termsBusiness-to-business services
Leaflet or advert testA small paid post or leaflet with a booking linkChecking a channel and message
The method

The booking or pre-order page

A booking page is a single web page or form that describes your offer clearly, with a price, and asks people to book or pay a small refundable deposit. It tests whether interest turns into action.

  1. Describe the offer plainly. What they get, where, when, at what price. A photo if you have one.
  2. Ask for a real action. A booking with a date, or a small refundable deposit. Not just an email.
  3. Be honest about the stage. “We start in March. Your ₹200 is fully refundable until your first visit.”
  4. Share it where customers are. Groups, societies, neighbours, with permission.
  5. Count three numbers. Visits, enquiries, and bookings or deposits.

Visits → Enquiries → Bookings or deposits

Example

Rohit's booking page

310visits to the page
46enquiries
22₹200 deposits paid
StepNumberRate
Visits to deposits310 → 227.1%
Enquiries to deposits46 → 2248%
Pass mark: 15 deposits in two weeks22Passed
The method

Pop-ups and sample batches

A pop-up or sample batch lets customers experience the real thing: taste the food, try the service, hold the product. It tests whether the experience matches the promise.

Pop-upSample batch
What it isOne day or weekend where you sell in personA small production run sold to real buyers
Typical costStall or space, materials, your timeIngredients or materials, packaging
What to measureVisitors, buyers, average spend, repeat bookingsUnits sold, at what price, reorders
Watch out forFestival crowds that won't returnFriends buying to be kind
Example

The clubhouse demo day

ItemAmount
Dogs groomed18
Takings (18 × ₹999)₹17,982
Costs (groomer, products, table, water)₹14,000
Result+₹3,982
Deposits for van bookings taken on the day9
Try it yourself

Questions from the worksheet: Your quick test

Plan one quick test for your most dangerous cheap-to-test guess.

  1. Which guess does this test? What is the pass mark?
  2. Which test (booking page, sample batch, pop-up, by hand, letter of intent, advert)?
  3. What exactly will customers see, and what action are you asking for?
  4. Where will you share or hold it, and whose permission do you need?
  5. Three numbers you will count:
  6. Cost, dates, and your honesty promise (refunds, start date):
In three lines

What to remember

  1. Quick tests ask customers to act: book, pay a deposit, buy a sample. Action beats opinion.
  2. A booking page with a small refundable deposit, a pop-up or a sample batch costs little and shows real intent.
  3. Keep every test honest: say what exists, refund promptly, ask permission and follow the rules.
Booking page
A one-page offer that takes bookings or deposits.
Pop-up
A short-term stall or event where customers can buy.
Do it by hand
Delivering manually before building any system.

This article is adapted from the book. Examples marked “Example” use invented names and numbers; company stories are based on public sources listed in the book. For general learning; use your own judgement for your situation.