[John Leung]

I like the whole idea.  The best practices is mainly build on the 7 principles.  This direct link has a good description of the 7 principles: http://www.leavenotrace.ca/principles

Also, along with the Leave No Trace web site, some BC parks also recommend the practice and have extra info for BC parks: http://www.env.gov.bc.ca/bcparks/explore/notrace.html (at the end of the page of this link on pack it in pack it out, they specifically mention “biodegradable scraps such as apple cores and orange peels”.  They don’t decompose fast enough before the next hiker comes along.  So they should be packed out as well.)