I use the plastic orange waterproof match cases with an O-ring seal. I glue a cutout of the striker strip from the side of the box to the Inside, top of the case. I then store the waterproof matches iginition side down, in the case. I my mind this should eliminate any chance for an accidental iginition from friction, plus there should be almost no oxygen in the case to support combusion.

Michael
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Education is the best provision for old age.
~Aristotle

I have no interest in or affiliation to any of the products or services I may mention. Should I ever, I will clearly state so.