Introduction — One Hundred and Twenty Cards With the Wrong Date
A customer typed the wrong date, printed a hundred and twenty invitations, and it was still Nell's problem.
⚠ Month nine. A customer bought Nell's invitation suite, edited it, sent it to a print shop and collected a hundred and twenty invitations. The date was wrong. They had typed it themselves, in a field Nell had made editable, and neither of them had noticed until the cards were in a box.
What happened next
| ⚠ Step | ⚠ Detail |
|---|---|
| ⚠ Who made the error | ⚠ ⚠ The customer |
| ⚠ Who was blamed | ⚠ ⚠ Nell |
| ⚠ What was demanded | ⚠ ⚠ A refund and the reprint cost |
| ⚠ What Nell did | ⚠ ⚠ Refunded, and paid part of the reprint |
| ⚠ Time spent | ⚠ ⚠ About four hours over three days |
| ⚠ Weeks until the wedding | ⚠ ⚠ Six |
⚠ "They were not being unreasonable. They were four hundred pounds down and getting married in six weeks, and I was the only person involved who could be shouted at." Section 8.3.
⚠ That is Rule Four, and it is the rule that separates this business from every other digital product in this series. Section 8.1.
What actually prevented it, afterwards
⚠ A single page inside every template, headed "Before you send this to print". Section 8.4.
| ⚠ The proofing page asked | ⚠ Why |
|---|---|
| ⚠ Read the date aloud | ⚠ ⚠ Typos survive silent reading |
| ⚠ Check the day of the week against the date | ⚠ ⚠ Catches most date errors |
| ⚠ Check every name spelling with the person named | ⚠ ⚠ Nell cannot know these |
| ⚠ Check the venue address against a map | ⚠ ⚠ Catches copied-in errors |
| ⚠ Have one other person read it | ⚠ ⚠ The single most effective step |
| ⚠ Print one copy at home first | ⚠ ⚠ Catches layout and print problems |
⚠ "It cost me forty minutes to write. In three years since, nobody has printed a wrong date." Section 8.4.
⚠ It does not remove the liability. It removes most of the events. Section 8.6.
The number nobody had counted
⚠ Nell's first suite took about forty hours to design. That figure was known and irrelevant. Section 17.2.
| ⚠ Line | ⚠ Year one |
|---|---|
| ⚠ Design hours, first suite | ⚠ ⚠ ~40 |
| ⚠ Support minutes per sale | ⚠ ⚠ ~22 |
| ⚠ Sales in the first season | ⚠ ⚠ Substantial |
| ⚠ Support hours that season | ⚠ ⚠ More than the design took |
| ⚠ Effective rate, design plus support | ⚠ ⚠ Below anything worth having |
⚠ "I had priced a template on how long it took to design, in a business where the design is the small half." Section 17.4.
⚠ Twenty-two minutes a sale is the number that decides whether this works, and no marketplace reports it. Section 30.2.
What the support was actually about
⚠ Nell kept a log for one month in year one. Section 24.3.
| ⚠ Question | ⚠ Share of messages |
|---|---|
| ⚠ ⚠ "How do I open this?" | ⚠ ⚠ ~24% |
| ⚠ ⚠ "My name doesn't fit" | ⚠ ⚠ ~19% |
| ⚠ ⚠ "I deleted something and can't get it back" | ⚠ ⚠ ~16% |
| ⚠ ⚠ "The printer says there's no bleed" | ⚠ ⚠ ~14% |
| ⚠ ⚠ "What size is this?" | ⚠ ⚠ ~11% |
| ⚠ ⚠ "Can I change the colour?" | ⚠ ⚠ ~9% |
| ⚠ ⚠ Everything else | ⚠ ⚠ ~7% |
⚠ Not one message was about whether the design was attractive. Section 2.9.
⚠ "Every single one of those was answerable once, in the file, before it was ever asked." Section 23.7.
What fixing it did
| ⚠ Change | ⚠ Month | ⚠ Support minutes per sale |
|---|---|---|
| ⚠ Nothing | ⚠ 1–11 | ⚠ ⚠ ~22 |
| ⚠ A two-minute demo video | ⚠ 12 | ⚠ ⚠ ~14 |
| ⚠ Locked layers and a reset page | ⚠ 14 | ⚠ ⚠ ~9 |
| ⚠ Print specifications stated on the listing | ⚠ 16 | ⚠ ⚠ ~6 |
| ⚠ The proofing page and an FAQ page | ⚠ 18 | ⚠ ⚠ ~4 |
⚠ From twenty-two minutes to four, across seven months, for perhaps six hours of work in total. Section 30.5.
⚠ "The same template, at the same price, became a completely different business — and I changed nothing anybody would call design." Section 20.9.
The bleed problem
⚠ Month fourteen. A customer's print shop rejected the file: no bleed. Section 7.2.
| ⚠ Line | ⚠ Detail |
|---|---|
| ⚠ Customers affected before Nell understood | ⚠ ⚠ 6 |
| ⚠ What each had already paid for | ⚠ ⚠ Paper, and in two cases a rush fee |
| ⚠ Time to fix the template | ⚠ ⚠ ~90 minutes |
| ⚠ Time to have prevented it | ⚠ ⚠ One test order at a print shop |
| ⚠ Cost of that test order | ⚠ ⚠ Small |
⚠ "I had looked at that file on a screen four hundred times. A screen cannot tell you about bleed." Rule Three.
Where the money was, at month forty
| ⚠ Layer | ⚠ Share of revenue | ⚠ Support load |
|---|---|---|
| ⚠ Full suites | ⚠ ⚠ 46% | ⚠ ⚠ Moderate |
| ⚠ Bundles of existing suites | ⚠ ⚠ 19% | ⚠ ⚠ None additional |
| ⚠ Single templates | ⚠ ⚠ 14% | ⚠ ⚠ Highest per sale |
| ⚠ Digital invitations | ⚠ ⚠ 11% | ⚠ ⚠ Low |
| ⚠ Paid colour changes | ⚠ ⚠ 10% | ⚠ ⚠ Priced for it |
⚠ Single templates were the smallest revenue line and the largest support line. Section 3.1.
What this book is
⚠ Thirty-seven chapters, sixty-eight fill-in resources, and a hundred and forty-eight AI prompts — four per chapter, none of which will design your suite.
⚠ It is built on four rules and on one number: support minutes per sale, which decides whether your price works and which no marketplace reports. Section 30.2.
⚠ The commercial axis is revenue per supported hour — every design hour and every support minute, in one denominator. Section 30.1.
⚠ And the argument running through it is one sentence: you are not selling a design, you are selling somebody an editing task they have never done before, with a deadline that cannot move, for an event that happens once. Section 5.1.
How to read it
⚠ Chapters 5 to 8 first, in order. They are the four rules.
⚠ Then Chapter 21, before you decide what to make editable. Section 21.1.
⚠ Then Chapter 22, before you sell anything anybody will print. Section 22.1.
⚠ Then Chapter 15 before you use a single font commercially, because that is the licence people discover they did not have. Section 15.3.
⚠ Everything else is procedure, and the procedures are only worth having because they are cheaper than the Sunday evenings that produced them. Section 34.8.
©2026 James Henderson / https://localhandyman.work