A Bic can't start to compare with a Zippo. I put a piece of old bicycle inner tube around mine to reduce evaporation of the fluid. I top it off before each trip for safety. You could also get a small bottle of extra fluid to carry in a pack for a backup. Put a couple oz. in some kind of small bottle that you have around the house.
Try using a Bic when your hands are about frozen. You can't keep your thumb on the lever. You can light a Zippo against your pant leg, sleeve, or anything else while you have your gloves on.
