I EDC a Bic along with my Zippo, and both are checked and replaced or refilled respectively, consitently. With that being said, the "Big Gun" firestarters are in my PSK, which is always nearby. Granted, it should be noted that I work at home so my PSK is often no more than an arms length away unless I take it with me and leave it in the car. Heck, for that matter I am rarely without my BOB either though more often than my PSK. LOL