2) I like a small LED flashlight for those long lonely times in the dark.
3) A large heavy knife or a small hatchet (which can do a respectable job as a hammer).
4) "Zip ties" Bigger is better! I've seen some doozeys at Home Depot for securing insulation to heating ducting. You can always cut them shorter.
5) A tiny set of binoculars or a monocular is nice.
6) Gold Bond powder can help avoid and relieve the dredded "Monkey Butt" syndrome.
7) I've been considering a light slim laptop computer I could download my dig camera to it, load it with Streets & Trips, and a host of map programs, the CD manual for my bike, and a dozen good books. Lacking #1 I have been too cheep to go for this option as of yet. If I do I'll have to cobble together some power supply adapted to my bike.
