One of my most recent discoveries in Tonga is something called kaukau tuitui. In Tongan, kaukau means to shower and tuitui is a small nut. In order to use the tuitui to clean yourself, there are several steps. 1. take a hammer to crack open the nuts 2. use a knife to get the nut out from inside the shell 3. put the chunks of tuitui in your mouth 4. chew together with good-smelling leaves (usually cinnamon) 5. use the finished product as a soap, rubbing out all the dirt from your skin. It's a great exfoliant!