Great question and I think it has got a lot of us thinking. I have two ideas. One would be some chemical/biological barrier gloves. Something heavy duty that protected your hands if your going through areas that might have contaminated water or fluid. Maybe even look for a type that has some extras protection of the knuckles and fingers.

Next is a step I think all of us would like to include in our EDC kit, a PLB.

Now that I think about it, On-Star might also be a good idea for your van.