I don't carry a survival kit, since Denmark is so densely populated, that you wil never be more than an hours walk away from some kind of civilisation.

However, when I purposefully seek out wilderness in Sweden, my firekit will always concist of 3 means of firelighting:

1: Waterproff matches
2: JEEP lighter
3: ESEE Ferrorod, the handle filled with cotton rubbed in petroleum jelly.

The matches, lighter and petroleum cottomballs are left alone till such a time, when the ferrorod is not enough to light the fire.