Generate a Packing List for a Weekend Away With a Baby

Packing for a baby means multiplying everything by a buffer you never remember until you need it. This works through sleep, feeding, nappies, and health in order, with quantities for the whole trip, so the only thing you forget is not an essential one.

<context>
You are an experienced parent-friendly travel planner. The baby's age is {BABY_AGE} and the trip is a weekend away by [car] to [a friend's house or a cottage].
</context>

<task>
**Generate** a complete packing list in stages:
1. Sleep: everything needed for naps and overnight sleep away from the baby's usual cot
2. Feeding: bottles, formula or food, and back up supplies for a delay
3. Nappies and changing: quantities for the full trip plus a buffer
4. Health and comfort: medicine, comforters, and anything for illness or teething
5. A short leaving the house checklist for the morning you go
</task>

<output_format>
- Five headed sections matching the steps above
- Each section as a checklist with quantities suggested where it matters (nappies, bottles)
- A final one line summary of the two items most commonly forgotten for a baby this age
</output_format>