Grow Your
Business.
More customers, at a margin that pays, run from ChatGPT or Claude. Unzip it, upload two files to a Claude chat (or open the folder in Claude Code or Codex) and say "Let's grow my business." My method, my tools and 22 guides, from a working life behind the counter.
Instant download · Works, or your money back · Secure checkout with Stripe
Buy on your phone, set up on your computer. The booklet reads anywhere.
- £20 once
- Works with ChatGPT or Claude
- Yours to keep
- No subscription
Let's grow my business.
Good. What do you sell, and what does a typical sale leave you after the cost of delivering it?
Fitted kitchens. About £12,000 each, and £4,800 left. A customer wants 20% off.
Don't. 20% off leaves you £2,400, so you'd need twice as many kitchens to stand still. Offer a smaller job at full margin. And you have 140 past customers who haven't heard from you in a year. Five of them today. I'll draft, you approve.
Is this for you?
It's for you if
- You have customers, but not enough of them, or not at the right price.
- You're tempted to cut prices to win work and want to know what that really costs you.
- Most of your work comes from people who already know you, and you want more of it.
- You run a trade, a shop, a clinic or a small firm, and your customers live in your phone.
It's not for you if
- You don't have a product or service yet. Start Your Business is the one for you.
- You want ads or a marketing agency. This is about the customers you can reach yourself.
You'll need
- A computer or a phone.
- A Claude or ChatGPT account. A free one works the guide-and-spreadsheet way.
- About 30 minutes for the first session.
- Sending emails from your own mailbox needs Claude Code or Codex on a computer. Texts and WhatsApps you send yourself.
Upload two files. Say one sentence.
No platform, no login, no subscription. It works with the AI you already use.
Download the folder.
Pay once and download straight away. Put the folder somewhere you'll keep it. Your customers and your numbers stay inside it, on your own computer.
Open it in ChatGPT or Claude.
In Claude Code or ChatGPT's Codex, choose the folder and the AI reads the playbook by itself. In a Claude chat or ChatGPT Plus, upload the tool and the core file from the for-a-chat folder; it asks for a guides file when a stage needs one.
Say "Let's grow my business."
It starts from what your AI already knows about your business, checks it with you, and builds the rest from scratch. Then you get your next three jobs with dates.
Watch how it works.
Buy, download, upload two files to a Claude chat (or open the folder in Claude Code), and say one sentence. Forty-five seconds, start to finish.
Music: Ovanea by Moavii, from Free To Use.
This is what you get to look at.
Real screens from the folder. The business shown is the worked example that comes with it: a fictional kitchen maker, four weeks in.



*** FICTIONAL EXAMPLE: every person, firm and number here is invented. *** Calder & Rowe Kitchens · Monday 22 March 2027 Won £21,500 of £120,000 (18%) by 2027-06-30. £38,000 in live meetings and proposals. 1. Replies to answer (2) clara-fictional Clara Fictional greta-example Greta Example 2. Follow-ups due (3) hugo-pretend Follow-up 1 last contact 2027-03-10 iris-imaginary Follow-up 1 last contact 2027-03-12 jonas-dummy Follow-up 1 last contact 2027-03-14 3. Next five people nell-template warmth 3 email, check-in Fitted her kitchen in 2022; due a check otto-demo warmth 2 email, message 1 Plumber we use on most jobs Drafts: 2 waiting for your yes, 1 approved and ready to send. This week: 1 email sent. Pipeline: To research 2, Connected 1, Warming 1, Contacted 3, Replied 1, Meeting 1, Proposal sent 2, Negotiating 1, Won 2, Lost 1.

Six stages. Start anywhere.
From "what exactly do I sell?" to customers who come back. Short of cash right now? It starts with twenty-five past buyers and a fourteen-day plan.
The offer
Who you sell to, what they get and why you, in ten words a stranger understands. Then an offer that's easy to say yes to.
The numbers
What every sale really leaves you, what a discount costs, what a customer is worth, and your target turned into conversations a week.
The message
A summary, a one-page offer and a short sales deck. A profile and website that sell before the call.
Your pipeline
Customers first, then people who know you, then partners. Strangers last, and only after they've seen you.
The daily thirty
Replies first, follow-ups due, five new people. It drafts, you make it yours, and you send it (in Claude Code or Codex it can send from your own email).
Keep and grow
Check-ins, repeat work, referrals and proof. And a business that sells when you're not there.
Grow Your Business.
£20 once
My Pricing Review is four weeks with me. This is the method behind it, for you to run, for £20.
Instant download · Works, or your money back · Secure checkout with Stripe
Installs nothing · No tracking · Nothing sent to Nine Bar
A folder you keep. Pay with Stripe, download straight away, and we email you the link.
Want all six business playbooks? Get Start, Round, Grow, Audience, Save and App for £60. Or any three for £45, your choice.
Already bought it? Get your download link again.
- The booklet: every guide in one PDF, for your phone or to print
- The playbook: my method, offer to repeat business
- 22 guides, from the pricing playbook to the message library
- Three spreadsheets, including the sales calculator
- The sales tracker, proposal maker and dashboard
- A worked example to copy from
- Works with ChatGPT or Claude
What buyers said.
Word for word.
“Jamie's playbooks are a gamechanger.”
What's in the folder.
The AI reads the playbook. These are yours: 22 guides in my voice, three spreadsheets and a worked example.

Start
Customers and outreach
Offer and price
Keep and grow
You, the owner
Spreadsheets and the worked example
The playbook.
How I think about winning customers, pricing and margin, from the family restaurant to the business I lost with a full order book. What works now, and what I've stopped doing.
The sales tracker.
Runs in your chat or on your computer: your pipeline, the pricing sums, a forecast, proposals and the dashboard. In Claude Code or Codex it can also send from your own mailbox and check for replies.
The rules of the road.
Who you may email, what you may claim and how to keep customer details, in plain English.
"Revenue is vanity. Profit is sanity. Margins are survival."
I started waiting tables in the family restaurant at ten, where every plate either made money or it didn't. I built and sold a food business. Then I lost a business that had a diary booked for months: the order book was full and the bank account was empty. Both lessons are in this folder. Fix the message, know your margin, start with the people who already know you.
Jamie Mussett Harford
The rules it keeps for you.
People can tell a mail merge in a second. So the sales desk keeps the rules I hold clients to.
Nothing goes without your yes.
Every message waits for you to read it, change it and approve it.
Customers first.
It starts with people who already know you. No bought lists, no mail merge, no tracking. LinkedIn and the phone are always you.
Nothing made up.
No invented reviews, results or deadlines. Every claim is one you could prove.
Your data stays yours.
Everything is kept in the folder on your computer. Nothing is sent to Nine Bar.
Questions owners ask.
What kind of business is it for?
Any business that sells to people or to other businesses and wants more of them: trades, shops, clinics, restaurants, agencies, consultants, software. It works best if you already have some customers, because it starts with them.
What do I need?
Easiest in a Claude chat, with nothing to install: you upload two files from the folder to start (a guides file when it asks) and it keeps your pipeline, does the price sums, writes proposals and draws the dashboard. Also ChatGPT Plus, or Claude Code and Codex if you use them. On free ChatGPT, Gemini or Copilot it works the guide-and-spreadsheet way: the same method, with the big sums in the spreadsheet and no dashboard. Sending from your own mailbox needs Claude Code or Codex; everywhere else it writes each message and you send it.
Is it safe to open and run?
Yes. Nothing in the folder installs anything, runs on its own or sends anything to anyone. It holds guides, spreadsheets with no macros, PDFs and one small Python script, sales.py, that uses only what comes with Python. It never goes online, except one thing you choose: on your own computer, in Claude Code or Codex, it can send email from your own mailbox using an app password you create and can cancel. Nothing is ever sent to Nine Bar: no accounts, no tracking. In a chat, what you upload is read by that AI company, so don't upload passwords or card numbers. You can open the script in any text editor and read every line, and the folder includes a page that lists exactly what it does.
Do I have to explain my business from the start?
No. It first looks at what your AI already has: its memory of you, your project files, any documents you've connected, your price list and customer list if they're there. It tells you what it found, asks you to confirm it, and only asks about what's missing.
I'm not technical. Can I use it?
Yes. The easiest way is a Claude chat: upload two files to start, a guides file when it asks, and talk in plain English. The START HERE page in the folder walks you through it in five minutes, and every guide opens in your browser like a web page.
Will it email people on its own?
No. Every message waits for your yes on that exact message. In a chat, you send each one yourself. In Claude Code or Codex it can send from your own address, one person at a time, and stops following up the moment someone replies or asks it to.
Is this cold email software?
No. It starts with your own customers and people who know you, and it won't write to bought lists. Strangers get a connection first and hear from you only after they've seen you.
Can it guarantee more sales?
No one honestly can. It gives you the method I use, the sums that stop you giving your margin away, and the discipline to do thirty minutes of it every day.
Can I get a refund?
If it won't open or run on your computer, yes. Email Jamie within 30 days of buying: we'll help you get it working, and if we can't, we refund you in full. We don't refund a change of mind, because the download is yours the moment you pay.
Rather have me in it with you?
Grow Your Business is the do-it-yourself version. When you want me alongside you, there's more.
The Pricing Review
4 weeks
Four weeks: the true margin of every product, price research, range decisions and a new price list with a rollout plan.
What's includedThe Turnaround
8 weeks
Eight weeks: cost and margin audit, 13-week cash forecast, pricing and marketing fixes, weekly reporting and a 90-day plan.
What's includedRun Your Own Round
£20
The other playbook: your funding round, run from ChatGPT or Claude, with 22 guides and a round tracker.
See Run Your Own Round