So far, my favorite lighter for use while camping is the Solo Candle Lighter:
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BTW, it doesn't use a flint to spark - it is peizo-electric.
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Danger, Will Robinson.
Peizo ignitions systems do NOT work if they are wet. This lighter may be handy, but it will be useless in the rain. If you carry this, make sure that you have a reliable backup.
This is why the high-end ourdoor piezo lighters (like the Brunton Helios) have massive amounts of latches and gaskets -- to keep the innards dry.