Yes, I do carry a lot of knives. I'm a collector, and love to use my knives. If I don't have them on me, I can't use them.
And the SparkLite fire starters aren't the flint part, I'm talking about the impregnated cotton tinder.
I did a few experiments in the back yard and convinced myself that a spark, even with a magnesium rod, wasn't enough to get a fire going quickly with a minimum of effort. So I added the prepared tinder to my pocket EDC.
Bear
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No fire, no steel.