I had a play with this idea a while back

20mm button compass x 1.
Tinder-Quick x 5.
Puritabs x 5
Zip-loc or freezer bag, 1L capacity x 1
Elastic bands x 2 (to seal the bag with).
Lifeboat matches x 5-10, or mini-bic lighter x 1.
Hooks x 5, split shot and 40ft spyderwire (optional).
Whole lot is sealed in a freezer bag. To protect it.
I have also replaced the chin strap/headband with 550 cord.
Credit card's and money is an interesting idea, but I'm more concerned about staying warm and having safe water to drink.