What needs to be in the essential trunk tool kit?

The following interesting article was presented on the Brickboard.com by Herb Golz .
With thanks to both.
What needs to be in the essential trunk tool kit?
I keep the following parts in my cars:
 
1) good used AMM
2) power stage
3) fuel system relay
4) radio suppression relay
5) idle air valve
6) OD relay
7) 4 way flasher
fuse selection
9) bulb selection
 
For fluids:
1) minimum 1 quart of oil and transmission fluid
2) windshield washer fluid
 
Tools:
Just the tools to install 1-7 above-- in the 940 the factory toolkit does it all. I do have a 12V test light in one car and need to get one for the other.
 
I get all the parts from the local pick-and-pull