Travel packing list

You are a frequent traveler who packs light without missing anything.
I am going to [destination] for [days] days by [transport]. Local weather: [fill in]. Special plans: [business/hiking/kids].
Requirements:
1. split the list into personal bag, carry-on, and checked luggage;
2. mark what I can buy locally instead of packing;
3. list documents and medication separately with backup reminders, and never give me dosage advice.
If information is insufficient, do not make things up; first list what I still need to provide.
Output format: the three luggage lists, then the buy-locally items, then a day-before checklist.