I could arguably post this on B&I as well because these use cases can/will simultaneously disrupt or kill certain business sectors, but I thought I might get more good use cases from the Nerds. Some of these will have big impact and many are just time savers. I'll start with the two I just went through:

Landscape Design - I have an avid interest in this personally as I get pretty into managing our own. Background: we have a massive water shortage down here on the coast so even having grass in your yard going forward is an issue and largely pointless. Our city is now fining people for using their sprinklers because we've been under Stage 3 restrictions for 15 months now.

Yesterday, I used MS CoPilot (because it comes with my MS 365 sub) and redesigned our front yard replacing all of the grass with hardscape and Zone 9 drought tolerant plants, a separate side garden in the backyard, and redesigned another roughly 60 sq ft space in the backyard where the grass has already fully died. Did all of this in under an hour by merely uploading current pics and asking CoPilot to generate an image with my requirements. Spit out pretty much perfectly what I envisioned. I've paid big money on past houses to get elaborate landscape blueprints created. Now I can just hand these pics to a landscape company and just tell them make the photo a reality.

Professional Headshots - this one is minor but my wife just generated headshots in about 5 minutes using AI that are great. Zero reason to get professional headshots ever made again.

Things like nutrition/macro plans and weightlifting plans.

However, having used both a nutrition coaching plan and a trainer in the past, I would want to verify what AI tells me. Meaning, you have to have some knowledge in the field to know if you're getting good info.

For example, I worked with a trainer long enough that I could evaluate whether an AI generated weightlifting plan was good. But someone new to weightlifting probably would not. And there are enough "fitness influencers" out there pushing junk and fake info that AI could easily use bad information to create plans.

Good one. Forgot I used AI about two weeks ago to generate a new exercise regimen for myself. I'm pretty knowledgeable about the topic and know my own strengths and weaknesses and movements to avoid, so I was able to tweak it appropriately.

I use LLMs daily. I do commercial instance and use it to answer questions about policies and help creating a procedure document for my firm.

I've also used it to help write a book.

Here's one I did: https://gemini.google.com/share/91c6c396f6f5

I use it for recipe creation using things I list from my pantry/fridge.

i've used it to build workout plans based on me and my life, as well as golf specific training workouts.

I've used to create a preventive maintenance calendar for my cars and house.

I've used it to write many document or at least give me the outline. Also generate slide presentations.

I've used it to help apply for and interview for specific positions at specific jobs. Use it to help prepare for interviews using video and audio.

I helped build an AI workflow for a large tax auditing consultancy that helps them perform comparisons of prior year documents (think SEC docs/filing or IRS docs), and then generate analysis on the differences and draft new audit docs based on those differences. Shortened portions of their cycle time from weeks down to a couple of days, with less errors.

Currently working for a large hotel chain to help their marketing team auto-generate marketing content using proper tone of voice for the different brands and tiers. Some are more luxury and require a different tone of voice, some are more economical and have a different tone. Taking the process down from months to a few weeks.

I have used it to do complex formulas in spreadsheets

I have used it for my job quite a few times.

1. Build a complex spreadsheet using macros
2. Summarize large pdf files I don't have the time to read through
3. Verify state and federal regulations (after AI gives the answer I ask for the specific page of the ruling and then go verify it myself)

I also use it at home.

1. Help fine tune 3d printer settings based on brand of filament and which nozzle I am using
2. Find recipes for items in my pantry
3. Workout plan
4. Comparing products I am thinking about purchasing
5. Troubleshooting various things I'm not an expert in

Mucho austin said:

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I have used it to do complex formulas in spreadsheets

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My number one use is writing macros in Excel

Basic code building and or code checking for vulnerabilities. My devs use it all the time.

I personally use it for creating basic 3d print model files that i then edit as needed but chatgpt can do hours of basic work in seconds with the right prompts

My wife used it to design a remodel of our bedroom. Now all I have to do is make it a reality!

I use it most often for the following two things:

• Business conference prep: I feed it a list of attendees, titles, and what companies they're at and ask it for a dossier that gives me some bullet points on the most prominent people and companies attending with the latest updates from those institutions (big initiatives they announced recently, etc.) and send it around to my team at the conference to make sure they have good conversation starters for those people
• When I'm pitching an idea up the corporate chain a bit, I chuck the powerpoint preso into AI along with the corporate bios of the people I'm pitching to and personality traits I've observed about them over the years. I ask it to read the powerpoint pitch and come up with 15-25 questions they would ask me about it from the perspective of the people I'm pitching to, some of the questions are nonsense but there are some meetings where it predicts upwards of 60% of what some of my executives will ask

I generally try to use it more as a thought partner to get me from 0 to 1, not necessarily a final product, instead of as an executive admin.

Along that route, I fed it my resume and the job posting for my current job and asked it for interview questions. Of the 10 questions it gave, about 5 were word for word asked in my interview.

zip04 said:

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Along that route, I fed it my resume and the job posting for my current job and asked it for interview questions. Of the 10 questions it gave, about 5 were word for word asked in my interview.

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I gave it my resume and a job posting, and asked it to rework my resume to more closely fit what the company is looking for.

It also gave me optimized responses to their online application questions as well as a tailored cover letter.

results: TBD, but still cool enough

Yeah, I used AI to write my last job description and promotion I submitted to our owner. Took about 15 minutes with prompt and post tweaking. That would have been a 2-3 hour exercise in the past.

My wife has used it to plan family trips. She would give Gemini a date range, where to go, points of interest, and Gemini would spit out an entire itinerary complete with airline flights and public transit times.

What I use it for regularly....

iPhone Shortcuts I've created that use ChatGPT

• If my wife or I see a recipe on instagram or online we like we can share it with a shortcut, it will use ChatGPT to pull an ingredient list (in a specific format), steps, macros, and a link to the recipe and create a note in a shared folder
• We can share that note to a shortcut to add all ingredients to our shared grocery reminders/list
• I created a shortcut that I can share a picture of a meal, ingredients, or even a description to and it will give me estimated macros
• Help create and modify workout routines
• Morning shortcut that runs and texts me weather, any birthdays I have in my contacts, what calendar events or reminders I have for the day, and summarizes new and unread emails as well tells me which to prioritize

Others I use pretty regularly but aren't iphone shortcuts

• We've created a prompt for weekly meal planning
• Excel, PowerBI, etc. help
• I work with a lot of contracts and MSAs, so have created a project where it knows my desired outputs and helps me analyze redlines to get there and outlines any risks in the proposed redlines

And a bunch of random stuff...such as

• I had it help me design build plans and a cut sheet to build a roomba garage that looks like a planter (haven't built yet)
• I was having issues with my Sonos speakers dropping out for a second quite often....I gave it the setup I have (TV and speakers) and the problem and it gave me a step by step of what settings to change...I did it and it hasn't happened since

cav14 said:

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My wife has used it to plan family trips. She would give Gemini a date range, where to go, points of interest, and Gemini would spit out an entire itinerary complete with airline flights and public transit times.

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Yea, dont do that lol AI hallucinations are bad with this. Your going to spend a lot of time checking everything it came up with you might as well just research each location yourself and pick spots.

https://futurism.com/artificial-intelligence/ai-hallucination-landmarks-tourists
https://www.bbc.com/travel/article/20250926-the-perils-of-letting-ai-plan-your-next-trip
https://redriverranch.com/2025/07/01/ai-is-ruining-your-vacation/
https://www.oreateai.com/blog/fake-travel-itinerary/
https://onlinelibrary.wiley.com/doi/10.1002/cb.70105

Just to quote the first article (I saw this on the news too)

Quote:

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In one instance, two tourists were traipsing through Peru to get to a nonexistent "Sacred Canyon of Humantay" in the Andes Mountains when they were stopped by a local tour guide who overheard them and quickly became alarmed.

"This sort of misinformation is perilous in Peru," the tour guide, Miguel Angel Gongora Meza, told the BBC. "The elevation, the climatic changes and accessibility [of the] paths have to be planned. When you [use] a program [like OpenAI's ChatGPT], which combines pictures and names to create a fantasy, then you can find yourself at an altitude of 4,000m without oxygen and [phone] signal."

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Between this thread and the one on "tired of ai" it's obvious there are a lot of people oblivious to the tidal wave that is forming slightly out of sight. Most of us programmers are aware and slightly terrified.

David Kipping says something fundamental has shifted in science.

At a closed meeting at the Institute for Advanced Study (IAS), top physicists agreed AI can now do up to “90%” of their work and may soon push discovery beyond human understanding.

“I don’t know that I want to… pic.twitter.com/qMXbdUouNF

— vitrupo (@vitrupo) February 4, 2026

Mr President Elect said:

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Between this thread and the one on "tired of ai" it's obvious there are a lot of people oblivious to the tidal wave that is forming slightly out of sight. Most of us programmers are aware and slightly terrified.

David Kipping says something fundamental has shifted in science.

At a closed meeting at the Institute for Advanced Study (IAS), top physicists agreed AI can now do up to “90%” of their work and may soon push discovery beyond human understanding.

“I don’t know that I want to… pic.twitter.com/qMXbdUouNF

— vitrupo (@vitrupo) February 4, 2026

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And that 10%? They are already automatically farming it out to the lowest bidder.

https://www.forbes.com/sites/ronschmelzer/2026/02/05/when-ai-agents-start-hiring-humans-rentahumanai-turns-the-tables/

Quote:

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A new platform called Rentahuman.ai flips the usual narrative about automation on its head. Instead of people hiring software to do tasks, software hires people to act on its behalf. Not as assistants. Not as supervisors. As contract labor for autonomous agents.

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To drive my car. Oh you plebes still drive?