I think that one of the things we have learned about being prepared is to have a hierarchical approach to our kits.

The first step in the hierarchy is what we have in our pockets--however packaged. After that is what is in our EDC bag, whatever it is called (including a purse). Then it is what is quick access behind the driver's seat in the car, followed by something bigger in the trunk.

And, not to belabor the obvious, where you live changes a lot. North Dakota in the winter vs. southern Florida in the summer. extra warmwear vs. mosquito netting clothing.