I really like Doug's list. I already carry small duct tape that can be sourced at almost any camping/outdoor store. But I never see gaffers tape or fiberglass strapping tape in small sizes. Anyone know a source for such things, or is Doug "rolling his own"?
Rolling my own. Just use a "card key" from any hotel, or defunct credit card, and wrap around it. Works great. Then I seal it in plastic. (DO NOT vacuum pack it, that can suck the adhesive out, which is not optimal...)