I have to agree with Bill on this one. I have a bunch of refillable Jet-type lighters that all stopped working about the time of the first re-fill. These were all mostly low-end models, the only expensive one I had I lost about a week after I started carrying it.

So it's Bic Lighters for me, lots of them.

I often use a lighter to thaw out frozen padlocks by heating the key up or the lock itself. Bic's are not that great for this because the wind blows the flame out or the Butane is too cold. So I keep a 1 lb Propane Torch in my vehicle, I light it with the Bic and the lock is unfrozen in no-time. I tried small butane pencil torches for this but they had the same "cold butane" problem as with lighters.

This is way off topic but in the past I have had the entire 4 foot tall swivel post of an access control gate frozen tight. To thaw this out we build a bonfire around it just long enough to thaw it out, then quickly put the fire out with snow as it is really hard on the paint!

Mike