[at-l] Food Cache

[onestep at gwi.net (Kurt C)]

I have an upcoming hike in the works for which I'm thinking of caching 
food. My plan is to start from Grafton Notch and head north with 4 days 
of food, and cache another 4 day supply "3 or 4 days" down the trail. My 
primary reason is to reduce pack weight but an added benifit would be to 
eliminate an off-trail resuply.  During the last 5 years of section 
hiking my longest continous days-on-trail have only been 4 before I'd 
head off-trail into town to resupply. I'm really looking forward to 7 or 
8 continous days on the trail. I know I could just pack the food and be 
done with it, but it aint in my plans!
Soooooooo my question has to do with the 'best' way to cache food. 
Should I hang it from a tree or place it on the ground under 
rocks/branches/etc? Dig a hole and bury it? What container would be 
appropriate? Has anyone here actually cached a food supply?
Pro's & con's appreciated!
Onestep