By the way, my current choice of EDC key chain lighter is Peanut Lighter
http://www.countycomm.com/sslight.html Note the flat bottom base of that model - that's important, as allows hands free operation, wrapped with a piece of duct tape over the integrated O-ring - it holds the liquid fuel for very long time (3 years so far, checking every 6 month), have no exposed mechanisms to break or became soiled in your pocket, has a smooth shape, preventing entangling with other key chain items, takes the same flint size as the above sparker (I'm keeping a spare tucked inside the fuel compartment), produces good enough sparks when empty, the fuel soaked cotton ball inside is ready to use tinder for an extreme weather fire starting.