A good AI prompt can save you from a bad purchase and from a badly worded email. This week’s two topics are exactly the kind of everyday work people quietly struggle with: figuring out whether a big purchase is actually worth it, and saying no to someone without sounding rude, defensive, or slippery. Those are different problems, but they both get easier when you ask AI for structure instead of hoping it will “figure it out” on its own. The prompts below are designed for real life, not tech demos.

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

Use Case 1 of 2

## Use Case 1: researching a major purchase decision

On Thursday afternoon, Karen, 58, is sitting at her kitchen table with her glasses pushed up on her head and three browser tabs open for a new washer-dryer. One salesperson says she needs the premium model. Another says the mid-range machine is “good enough.” A neighbor has strong opinions, none of them useful. Karen does not want a lecture on brands; she wants to know what will actually hold up, what fits her budget, and what questions to ask before she signs anything. That is exactly where AI can help if you make it do the hard part: gather her needs first, compare options in plain English, and surface the trade-offs before the glossy marketing takes over.

Here is the exact prompt to use:

Copy and paste this into ChatGPT or Claude:

```text You are my personal buying advisor. I am considering a major purchase and I want a clear, practical overview, not hype.

Before you recommend anything, ask me up to 10 focused questions so you understand my situation. Cover: - my budget range, including what a stretch budget would be - my location - how I plan to use this item - my priorities, such as reliability, safety, long-term cost, ease of use, resale value, or appearance - any constraints, such as no used items, must be available within 30 days, need financing, or physical limitations

After I answer, do all of the following: 1. Summarize my needs in 5 bullet points in plain language. 2. Based on public information up to your knowledge cutoff, outline 3 to 5 good options for me. 3. For each option, include the model or name, the typical price range, the main pros and cons for my situation, and any known reliability or quality issues. 4. Explain the trade-offs I am making if I choose cheaper, mid-range, or premium options. 5. Give me 8 to 10 specific questions I should ask a salesperson, contractor, or installer so I do not get taken advantage of. 6. Suggest a simple next-step plan I can follow over the next 7 days without feeling overwhelmed.

Do not give me a recommendation until you have asked your questions and I have answered them. Tone I want: warm, respectful, and firm. ```

Why this prompt works: It forces the AI to behave like a disciplined assistant, not a confident salesperson. The first move is questioning, which matters because major purchases depend on context: budget, location, intended use, and constraints. The numbered structure also tells the model exactly what to deliver, so you get comparison, trade-offs, and practical next steps instead of vague advice. The phrase “not hype” helps keep the tone grounded.

Use Case 2 of 2

## Use Case 2: writing a professional decline email

On Monday morning, David, 63, opens his inbox and sees a request he does not want to handle. A former colleague wants him to join a committee, review a project, and “jump in whenever possible.” David likes the person, but he is already overloaded and knows that if he says yes, he will regret it by Wednesday. He does not need help deciding *whether* to decline. He needs help saying no clearly, politely, and without writing a six-paragraph apology that invites negotiation. This is one of AI’s most useful jobs: drafting a clean first version so you can keep your dignity and your boundary at the same time.

Here is the exact prompt to use:

Copy and paste this into ChatGPT or Claude:

```text Write a professional decline email for me.

Context: - I have been invited to: [describe the request] - I need to decline because: [brief reason] - Relationship: [boss / colleague / client / external contact / friend of colleague] - Tone I want: warm, respectful, and firm - My goal: say no clearly without overexplaining

Write 3 versions: 1. Very concise and professional 2. Warmer and more personal 3. Slightly more diplomatic if the request is sensitive

For each version, make sure it: - says no clearly - avoids long excuses - does not sound defensive - does not promise future help unless I choose to include that

Then give me 3 subject line options and 3 short opening lines I can use if I want the email to feel a little softer. ```

Why this prompt works: It gives the AI the job of balancing tone, which is often the hardest part of a decline email. By specifying the relationship and the reason, you help it choose the right level of formality without turning the message into a confession. Asking for three versions is useful because “professional,” “personal,” and “diplomatic” are not the same thing, and the best choice depends on who is on the other end.

A good prompt does not just ask for “help.” It tells AI what role to play, what questions to ask first, what a successful answer should include, and what to avoid. That is why the buying prompt works: it makes the model gather your facts before suggesting anything. It is also why the decline-email prompt works: it narrows the task to tone, clarity, and boundaries instead of leaving the model to improvise. In both cases, the quality of the result depends less on the “magic” of AI and more on the quality of the instructions.

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