.

One thing I wished for not long ago was telfa. DD sliced her thumb and I didn't have anything non-stick to put on it under the bandage... and my 3 local pharmacies had nothing either...
we have quite a stash of melolin - is that similar? it has a non-stick surface
also have things like bactigras/jelonet and adaptic from treating DH's wounds
gauze, combine pads etc
dressings trays
saline

have grabbed one of those silver blankets for each car
we always have towels and blankets in the car as well