I find that a combination of vacuum sealing individual use compartments (such as would hold one tinder quick, or two or three matches, or one piece of candy), the repackaging in ziplocs is the best approach. The indidual use items are well protected, yet can be had without compromising the entire supply, while the ziplocs keep it all together. Ziplocs are easy to suck down ( I usually suck all the air out at the corner of the opening, creating a small aperture at the end that is pretty easy to control). It is not a vacuum seal, in that I can't quite draw that hard, but it is well compressed, repeatable, and doesn't tend to leak.

Freezer ziplocs are a lot thicker and sturdier than regular ziplocs. I like using the freezer bags.