Build my packing list for this trip

Build a packing and prep checklist for my trip to [destination], [start date] to [end date]. Planned activities: [activities, e.g. hiking, beach days, two nice dinners]. Luggage: [constraint, e.g. carry-on only]. Research the actual weather forecast for my dates, plus destination specifics worth packing for: plug type and voltage, dress norms (including stricter venues or religious sites), tap-water safety, sun and insect protection, and anything seasonal. Organize by category — documents, clothing with quantities sized to the trip length and laundry options, toiletries, electronics and adapters, health items, and activity-specific gear. Add a short before-you-leave list: entry requirements to verify, phone or data plan, currency, reservations to reconfirm. Keep it tight enough to actually use, and mark the five things travelers most often forget for this kind of trip.