Maxim No. 17

Adventure travel maxim no. 17: Don't forget the duct tape.

I know I've got enough when I've made a couple wraps around my water bottle. Which gives me one more good reason to bring along an actual water bottle (instead of just a bladder or an Aqua Pur).

There are like a zillion more reasons--like, who doesn't use theirs as a clothes dryer or a hot water bottle? But that's another story.