The one and only Dr. Bronner's. Use it to wash your hands, wash dishes, wash your stinky socks, or shower, some people even use it to brush their teeth! Small, simple, clean. Throw one in your toiletry bag and another in with your dishes. 

Dr. Bronner’s liquid soap is entirely natural, fair trade, and free from any chemicals, artificial fragrances, dyes and preservatives whilst organic coconut oil and organic jojoba oil nourish the skin. The soap is fully biodegradable, so you can feel fresh knowing that you are not harming wildlife