These two items are essential for a long trip. Hand sanitizer is essential if you need to eat but are away from a safe source of water. Meanwhile, you never know how long you’ll be away from a place to do your laundry, but you’ll most likely have access to a sink of some sort. Travel detergent comes in a small tube and is a lifesaver if you can only carry a small amount of clothing in your backpack.
Contributor: Seb Atkinson from thetraveloid.com