Actually, a "gear" item is 5th on my list. In any and every situation I hope and plan to have the following things:
1) A working brain (can't do anything if you are not clear headed)
2) The will to live and not quit.
3) The skills, knowledge, experience, and attitude to deal with most anything.
4) A fit body able to do what I ask of it.

Now the gear:
5) A knife