ChatGPT examples: 282 real use cases with prompts

Plan a 4-year-old's birthday run of show and rain backup with ChatGPT

Planning their daughter's fourth birthday, a poster used ChatGPT to create the party's run of show for everyone helping, think through a rain backup plan comparing restaurants with covered space, and draft emails to those restaurants with what they needed and could spend. They read every draft and approve what gets sent; a virtual assistant handled invitations and vendor coordination.

Turn irregular yearly costs into monthly figures and test budget scenarios with ChatGPT

A poster used ChatGPT to organise their family's full budget, including annual costs, insurance, kids, subscriptions and irregular expenses, converting irregular costs into monthly averages, spotting blind spots and running scenarios. They say it was useful for organising and scenario planning but didn't replace judgment or professional advice.

Cut three monthly subscriptions from $59.85 to $18.12 with ChatGPT's help

Tom's Guide's Elton Jones asked ChatGPT for money-saving prompts and used its feedback plus their own research to review their recurring costs. They say they cut their three subscriptions from $59.85 to $18.12 a month by dropping Netflix from $19.99+ to the $8.99+ tier, switching Crunchyroll from $9.99+ monthly to an annual plan working out at $8.33+ a month, and moving to Experian's free credit-report plan.

Fix a leak under the kitchen sink with ChatGPT's help finding the right part

After noticing a leak under their kitchen sink, a poster used ChatGPT to work out what needed fixing, bought the replacement part and fixed it themselves. No more leak.

Build a family meal-prep system from fridge photos with weekly plans, one grocery list and cost per meal using ChatGPT and Codex

Cooking for a household with mixed needs (no red meat for one, extra protein for another, a baby, and occasional guests), Fei Jiang used GPT and Codex to build a 'Meal Prep OS'. It reads a fridge photo to see what's there and what should be used soon, builds a weekly plan with reused ingredients and a prep sequence, makes one consolidated grocery list to paste into a delivery app, and estimates nutrition and cost per meal and serving.

Let ChatGPT watch your Gmail and only interrupt you for emails that need action

TechRadar's Eric Hal Schwartz set an event-triggered ChatGPT task on their Gmail: alert them only when an email required them to do something or came from family, explain it in one sentence, draft a reply, and never reply without their input. Over an afternoon with Gmail closed they got just 3 alerts (their bank, a family member whose drafted reply they sent after small edits, and an event itinerary change); afterwards they found only two emails they might have wanted earlier, neither urgent.

Cut $1,437 a year from fixed bills by tackling one per week with ChatGPT scripts

A poster asked ChatGPT for a strategy and call scripts to cut their bills, tackling one per week. They report: internet from $109 to $50 a month with extras and a 5-year lock, mobile from $48 to $15 a month for the first year by switching, pest control from $48 to $11 by going DIY, and budgeting software from $9 to $3 by self-hosting, about $1,437 a year in all.

Fill a Walmart pickup cart with 26 meal-plan groceries using ChatGPT computer control, stopping before checkout

With school and sports starting, Arthur Sullivan had ChatGPT make a meal plan and grocery list, then logged into Walmart and asked it to arrange the order: pickup time, store brands over name brands, and no purchase without review. Using ChatGPT Work's computer control, it added all 26 items to the cart; the only mistake was one lemon instead of two. Sullivan reviewed the order before buying.

Hand a family's weekly grocery shop to ChatGPT's in-app browser and find it takes nearly an hour

Betting they could do the weekly shop in five minutes, Kirk Simmons connected ChatGPT to the family Google Calendar to find a delivery window, gave it a spreadsheet of favourite recipes and household needs, and let its in-app browser shop. It asked what food was left, suggested a meal plan, turned it into a list, chose between two supermarkets on budget and fresh food, and clicked items into the cart one by one. It took nearly an hour, picked a fruit-and-veg box when asked for a fruit box, and spent time comparing ethical chocolate brands; the shop arrived on time and well under budget.

Clear 23,000 emails and unsubscribe from newsletters in Gmail with ChatGPT's Gmail connection

A poster connected their Gmail and calendar to ChatGPT, then asked it to list all their subscriptions from their emails, unsubscribe from all but the ones they wanted, create deletion rules for the rest, and delete Promotions, Updates, Social and Trash. They say they deleted over 23,000 emails and made their inbox usable again, and ChatGPT told them when it was finished.

Reconcile bank, card and payment-app statements into a family budget with ChatGPT

A father of six gave ChatGPT three months of bank transactions, credit-card statements and payment-app exports, which don't reconcile easily in Israel. They say it removed duplicates, broke spending down by vendor and category, separated one-time and business expenses and built a realistic monthly budget, which they then went through with their three oldest kids to decide together where to cut.

Pick back-to-school supplies a daughter actually likes, with Target links, using ChatGPT

A parent gave ChatGPT the school's supply list for their daughter; because it already knew the girl's tastes from past chats, it picked specific items and gave direct Target links. They say their daughter, who usually dislikes whatever the parent chooses, didn't change a single item, only a few colours, and everything arrived within a few days.

Write a first job application with ChatGPT and get an interview invitation

A poster says they used ChatGPT to write a job application for the first time one weekend and received an interview invitation shortly after.

Negotiate a car lease by pasting every dealer message into ChatGPT

A poster says they used ChatGPT for an entire car negotiation: they pasted whatever the dealer sent into ChatGPT, asked what they should pay, and sent back the replies it wrote, including every counteroffer. They say it saved them around $250 a month on the lease and was better informed than they were on local pricing, incentives and lease terms.

Compare ChatGPT, Gemini and Claude at building a resume, judged by a recruiter

How-To Geek's Dibakar Ghosh gave the same job posting and prompt to Claude, ChatGPT and Gemini, each told to ask them questions first; ChatGPT asked 30. They liked Gemini's look best, but the recruiter picked ChatGPT's: the only one-page resume, with no fabricated details, though they found it busy. They say the questionnaire step is what made it work and that AI resumes still need human oversight.

Fill a back-to-school supply cart from the teacher's list with Gemini and Instacart

Tom's Guide's Amanda Caswell gave ChatGPT, Gemini and Alexa+ the same school supply list: follow it, stick to required quantities, pick reasonably priced items and skip optional ones. Gemini built an Instacart cart, skipped optional items, asked them to approve colours and totalled about $60–$90 ($105 with the optional water bottle). ChatGPT, on their Walmart account, followed the list carefully but slowly for $92.55; Alexa+ added the optional items and reached $251.48.

Stop a runaway cloud bill and win a billing credit with ChatGPT's help

A poster says ChatGPT helped them stop a runaway Google Cloud bill, prepare the evidence and, under their supervision, talk to a real Google Cloud support agent. They report a TWD 4,043 credit, with the remaining TWD 883.50 still under appeal.

Organise a 55-person international family reunion with Claude: roster, schedules, name tags

Hosting a family reunion for 55+ relatives from around the world, an organiser used Claude to clean a messy master roster, get vendor headcounts, send individual reminder emails, reconcile costs, produce individual schedules and roll-call sheets, and flag food allergies by meal. It also laid out the event program, cooler signs, mingling Bingo cards and colour-coded name tags on a specific Avery template. Earlier they'd used ChatGPT for the schedule, a local guide and newsletters.

Track a dog's blood-work changes between tests with ChatGPT to prepare for vet visits

A member of The Rundown's community uploaded each of their dog's blood-work PDFs to ChatGPT every couple of weeks and added details the forms left out. It helped them see which markers mattered and compare results week to week, which they say gave them a better footing for conversations at veterinary appointments, and peace of mind during a difficult time.

Gemini vs ChatGPT on a check-engine EVAP code: replace the sensor or clear the code?

After a check-engine light on their pickup, a driver read one evaporative-system code and the sensor readings, then asked Gemini and ChatGPT what they meant. Gemini suggested replacing the sensor; ChatGPT said to clear the codes and see if they came back. The driver cleared them, and after a long trip the code hadn't returned, avoiding a costly, labour-heavy part replacement for now.

Practise for an Amazon interview loop with ChatGPT and Claude mock interviews

Writing a month after accepting an offer from Amazon, a new hire says one of the things that helped was using ChatGPT and Claude for mock interviews: they fed both tools the job description and asked each to interview them like an Amazonian would, which surfaced questions they wouldn't have thought of. They also used AI to find gaps in their 15 prepared stories but wrote the stories in their own words.

Catch a 2-litre engine-oil overcharge on a car service bill with ChatGPT

Billed for a 6-litre pack of engine oil after a service on a Mahindra XUV 3XO at an authorised dealership, Gurpreet Singh Sodhi photographed the invoice and uploaded it to ChatGPT. It helped explain the invoice, identify the exact engine and its documentation, and prepare questions for the dealership. The dealership investigated, admitted the error, apologised and is re-issuing the invoice for 4 litres; the corrected bill is almost ₹1,500 lower.

Spot a fake IRS letter as a scam by checking it with ChatGPT

When a letter claiming to be from the IRS arrived, Sara Wilbur's mother suspected a scam, checked it with ChatGPT and was right. Wilbur, who had encouraged them to trust their instincts, watch for red flags and use ChatGPT, shared it as an example of fraud awareness working.

Build a calm, step-by-step Osaka trip guide for a neurodivergent traveller with ChatGPT

A traveller living with depression says ChatGPT helped them build a personal Osaka travel project: two books designed for them as a neurodivergent traveller, the second a field guide they planned to test in Osaka that September. They say it made the trip feel possible.