Good deal ya going there wooly! Very nice...
I carry a small one with my, few bandaids, gauze, tape, whatever I might need if I cut myself.
My first aid kit I walk around with at summer camp...it's intense, lets ;eave it at that,lol.
I'd also recommend an emergency blanket, they are compact and they work as a blanket as well as a shelter.
Doesn't hurt either to throw a couple aspirin in as well or Tylenol...aspirin if you or someone your with is having chest pain...good precautionary...Tylenol or ibuprofen for headaches, sprains,etc...