Device chargers and electrical adapters (and a converter if needed); portable charger/power bank
Clothing
Pack lightweight, quick-dry clothing that mixes and matches easily. Bring enough for about a week and plan to do laundry once. Layer strategically and check the weather and itinerary sections to be realistic about what you'll actually need.
Daypack
Small backpack to carry water, camera, and essentials while exploring
Walking shoes
One good pair of broken-in, comfortable, sturdy walking shoes is essential
Sport sandals or flip-flops
Rain protection
Windproof rain jacket, poncho, or small travel umbrella
Swim items
Swimsuit, quick-dry towel, slip-on sandals
Modest clothing for religious/cultural sites
Clothing covering shoulders and knees; scarf for women; easy-off shoes for temples, etc. Cultural expectations vary by destination, so please research yours in advance.
Sun protection
Sun block, sunglasses, hat
Flashlight or headlamp
First Aid Kit
Including: lip salve, Aspirin, bandaids, anti-histamine, Dramamine, Imodium (or similar), electrolyte powder, insect repellent, extra prescription drugs you may be taking
Toiletries
Basic toiletries (some hotels may not provide all items); small amount of biodegradable soap for laundry
Light windproof/waterproof jacket
Insect repellant
Important for tropical destinations; consider DEET-based or a strong natural alternative