A book you might not need, but if you do need it you probably really need it: How To Shit in the Woods. A steal at $7.95, the updated edition includes:

- reviews on newly available portable potties
- a new chapter specifically for the solo trekker
- the growing array of travelers' field water disinfecting systems
- a fresh batch of "worst experience" stories
- more wise t.p.-less techniques form the Old World for the purist
- and more all peppered with irreverent musings