A major purchase can leave you buried under reviews, specifications, and contradictory advice, while a professional decline email can take far longer than the decision itself. This week, we will use AI for two practical jobs: helping you think clearly before spending serious money, and helping you say “no” firmly without sounding cold or careless.

Try at least one before Sunday. That is the whole assignment.

Use Case 1 of 2

Use Case 1: Researching a Major Purchase Decision

At 8:17 p.m. on Tuesday, October 6, 2026, Michael Turner was sitting at his kitchen table with three laptop tabs open and a yellow legal pad covered in figures. His ten-year-old car had started making an expensive grinding noise, and he was trying to decide whether to repair it, buy a new vehicle, or purchase a lightly used one. Every website seemed to recommend something different. One praised reliability; another emphasized fuel economy; a third warned about resale value. Michael did not need AI to make the decision for him. He needed help turning a vague, stressful question into a fair comparison based on his actual life, budget, and priorities. That distinction matters. Good research is not simply collecting more information. It is identifying which information deserves the most weight.

Here is the exact prompt to use:

Copy and paste this into ChatGPT or Claude:

```text I am considering a major purchase and want help organizing my decision, not having the decision made for me.

The purchase is: [describe the item] My approximate budget is: [amount] I expect to use it for: [describe how often, where, and for what purpose] The most important things to me are, in order: 1. [priority] 2. [priority] 3. [priority]

My main concerns are: - [concern] - [concern] - [concern]

The options I am currently considering are: - [option 1] - [option 2] - [option 3]

Please help me in this order:

1. Restate my decision in plain English. 2. Identify the most important criteria for comparing these options. 3. Ask me up to five questions that could materially change the recommendation. Do not ask questions that are merely interesting. 4. Create a comparison framework showing what information I need for each option. 5. Explain which facts should come from reliable current sources, such as the manufacturer, government agencies, professional associations, or independent testing organizations. 6. Point out likely hidden costs, including maintenance, insurance, accessories, subscriptions, financing, delivery, taxes, and replacement parts where relevant. 7. Describe the strongest case for each option. 8. Describe the main risks or reasons not to choose each option. 9. Tell me what information is still missing before I make a decision. 10. Do not invent prices, specifications, reviews, warranties, or safety information. If current information is needed, clearly label it as information I must verify independently.

Use clear language for a nontechnical reader. Separate facts, assumptions, and judgment. End with a short list titled “What I should verify before buying.” ```

Why this prompt works: It gives the AI a **decision structure**, not just a request to “find the best one.” The budget, intended use, priorities, and concerns provide context, while the instruction to ask only decision-changing questions prevents a long list of irrelevant queries. Asking for hidden costs is especially important because the purchase price is often only part of the financial commitment. The final instruction - separating facts, assumptions, and judgment - makes it easier to notice when the answer sounds confident without being well supported.

Use Case 2 of 2

Use Case 2: Writing a Professional Decline Email

On Wednesday morning at 9:42 a.m., Linda Alvarez was rereading an email from a former colleague who wanted her to join a consulting project. The work sounded interesting, but Linda had already committed to a demanding contract and knew she could not give the new project the attention it deserved. She had spent twenty minutes writing - and deleting - possible replies. “I’m too busy” sounded dismissive. “Maybe later” was not true and might invite another follow-up. Linda’s problem was not grammar. It was judgment and tone: how to protect her time, preserve the relationship, and communicate a clear no without writing a small essay of apology. This is exactly the sort of task where AI can be useful, provided you supply the facts and retain control of the final wording.

Here is the exact prompt to use:

Copy and paste this into ChatGPT or Claude:

```text Please help me write a professional decline email.

The recipient is: [name and relationship, such as “a former colleague” or “a prospective client”] They asked me to: [briefly describe the request] I am declining because: [give the honest reason in plain language] My relationship with this person is: [describe the context] I want the tone to be: warm, respectful, direct, and not overly apologetic I do or do not want to leave the door open for future contact: [choose one and explain] If I want to suggest an alternative, it is: [person, resource, or say “none”] The response should be no more than: [number] words

Write three versions: 1. A concise version 2. A warmer version 3. A version that is especially firm if the person may continue asking

Each version should: - Thank the person briefly, if appropriate. - State the decision clearly. - Give only the amount of explanation needed. - Avoid excuses, exaggerated apologies, and promises I cannot keep. - Avoid saying “maybe later” unless I genuinely want to be contacted again. - Avoid blaming anyone else. - End with a professional closing.

After the drafts, explain in one short paragraph how each version differs in tone. Do not invent details about the project or my schedule. Use placeholders where information is missing. ```

Why this prompt works: It tells the AI that the goal is not merely a polite email but a **clear boundary**. The recipient, relationship, reason, desired tone, and word limit give it the information needed to make sensible choices. Requesting three versions lets you compare degrees of warmth and firmness rather than accepting the first polished paragraph. The instruction to avoid promises and invented details is crucial: an email that sounds gracious but creates another obligation has not solved the problem.

Know someone who spends too long on things AI could do in two minutes? Forward this to three people who subscribe and I will send you my free AI Prompt Starter Pack: 20 ready-to-use prompts for everyday life.

By Dr. Rowan Hayes