Xavier,<br> Just pulled some Spark-Lite tinders out of my billfold that have been there for close to a year. They were very compressed but fluffed easily. One strike from a worn out striker and the tinder caught fire. I too use the Coghlan tinder but keep them in a seperate altoids tin along with striker and matches. I wrap the matches in celophane though because after extended periods time the matches soak up the coating of the tinder and are hard to light. I also carry a package of the tinder/kindling sticks in my shoulder rig. For .99 cents a package they are good insurance. I guess I've wandered off the PSK a little bit into larger rigs. One other note. The old U.S. Military heat tabs will light by just thinking about a spark and burn completely in the pouring rain. Tom is right about the cotton balls and vaseline. I've started firewood with them before.<br><br>Regards<br>B.G.<br>Texas