Bailing twine/wire along with duct tape
form the basis for the creation of all things. That is to say any problem can be solved using these three fundamental materials. They are to the jury rig
ging engineer what fire, air, earth, and water were to the Ancient Greeks
Along with these raw materials, you pocket toolkit should contain: a pocket-knife (or preferably a Leatherman), a Zippo lighter, a Mini-Mag flashlight, a writing implement, some paper, and a laser pointer. For some reason paper plates come in handy a lot as well.
Anyhoo, with these raw materials and said basic toolkit, total world domination is just an idea away.
Note that the laser pointer is mostly useless, but if you're going to carry around the rest of the geek toolkit you might as well go all out.