Write a leaflet that gets kept, not binned

Help me write a leaflet people will keep instead of binning.

What I'm promoting: [service, offer or event]
Where it'll go: [e.g. door drop to 2,000 homes near me, counter at the vet's]
Who it's for: [e.g. homeowners, new parents, dog owners]
Size: [e.g. A5 double-sided, DL]
What would make it worth keeping: [e.g. a useful checklist, a fridge calendar, a seasonal reminder]
How people should contact me: [phone, website, QR code]

Ask me up to 3 short questions first. Wait for my answers.

Then:
1. Front: a headline that speaks to the reader's problem, a subheading and one strong reason to keep it.
2. Back: short copy, 3 benefits, the useful bit (tip, checklist or reminder), and a clear call to action.
3. A simple layout guide: what goes where, what to make biggest, and where to put the photo.
4. A way to track it, such as a code word or a separate number, and what to say when someone rings.
5. A checklist before I print: spelling of my phone number, web address, any dates.

Plain words, no clutter, don't invent offers. UK English.

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