How about all of the helpful advice about what you need to bring into the parks with you?
The first trip we took in 2005 after finding these boards, I felt so loaded down because you have to bring: moleskin, body glide, water bottles w/ straps or a filtered water bottle, bandaids, tylenol, bug spray, autograph books, fat pen, sunglasses, sun hat, suntan lotion, pins, camera, extra battery, charger, extra memory card, and about 100 other things that were "must haves" according to the boards.
After a few trips, I've learned it's just me, my camera, my hat, and my lanyard.