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Cut your grocery bill without starving everyone

The food shop costs more every week. Get swaps, a smarter list and a weekly spend target that still feeds everyone.

Updated 17 Oct 2026

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The prompt · ChatGPT

Help me cut my grocery bill.

What I spend on food each week: [amount]
Who I'm feeding: [e.g. 2 adults, 2 kids, a fussy eater]
Where I shop: [big supermarket, discount store, online delivery]
A typical shop: [list the main things you usually buy]
Things that can't change: [allergies, a brand someone insists on]

Ask me up to 3 short questions first if anything important is missing. Wait for my answers.

Then:
1. A realistic weekly target.
2. Eight to ten swaps or changes, ranked by how much they'd likely save, marked easy or harder.
3. Three habits that cut waste.
4. A short template list I can reuse each week.

Don't invent exact prices: use "less" or "more" unless I've given you the figures. Only use what I've told you, leave blanks for anything I haven't given, and don't invent facts, figures or products. UK English.

Stay in this ChatGPT chat. Do not turn on apps or connectors, and do not use memory from another chat.

A short example

Fill the blanks, then paste. amount: a short note you already have. e.g. 2 adults, 2 kids, a fussy eater: a short note you already have. Leave the rest of the prompt as written.

This does not give tax advice. The books stay in the accounting system.

The prompt · Copilot

Help me cut my grocery bill.

What I spend on food each week: [amount]
Who I'm feeding: [e.g. 2 adults, 2 kids, a fussy eater]
Where I shop: [big supermarket, discount store, online delivery]
A typical shop: [list the main things you usually buy]
Things that can't change: [allergies, a brand someone insists on]

Ask me up to 3 short questions first if anything important is missing. Wait for my answers.

Then:
1. A realistic weekly target.
2. Eight to ten swaps or changes, ranked by how much they'd likely save, marked easy or harder.
3. Three habits that cut waste.
4. A short template list I can reuse each week.

Don't invent exact prices: use "less" or "more" unless I've given you the figures. Only use what I've told you, leave blanks for anything I haven't given, and don't invent facts, figures or products. UK English.

Stay in this Copilot chat. Leave plugins off, and do not open a file from OneDrive.

A short example

Fill the blanks, then paste. amount: a short note you already have. e.g. 2 adults, 2 kids, a fussy eater: a short note you already have. Leave the rest of the prompt as written.

1

You say what you spend, who you feed and what a usual shop looks like.

2

The assistant asks where you shop and what can't change.

3

You get a weekly target, swaps ranked by saving and a few habits that cut waste.

What happens

Use Copilot to cut your grocery bill without starving everyone

The food shop costs more every week. Get swaps, a smarter list and a weekly spend target that still feeds everyone.

Tools

Paste the prompt, fill the blanks, copy the draft.

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