International travel requires more planning than domestic travel, and shorter trips require less than longer trips
Are you packing for yourself, or will you be packing for your children or family as well? If it's a friend trip, can you all tackle different duties?
The longer your trip, the more items you’ll need. Remember, the more days you’re away from home, the more variance there could be in the weather.
Hotels usually provide shampoo, but if you're camping, you need to bring your own. If you're staying with friends or relatives, they may have extra items you can use.