Widow wood or pine knots, you can start a fire in just about any weather with those.
Map and compass, beats a GPS if you forget to put new batteries in, or if you're curious whats over the next hill.
High carbon steel knives, you can keep stainless.
Wool and leather. They don't melt or burn as easily.

These are a few of my favorite oldies but goodies.
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A gentleman should always be able to break his fast in the manner of a gentleman where so ever he may find himself.--Good Omens