Cut your grocery bill without starving everyone

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.