I carry about a dozen matches. Technically that accounts for 11 spares. I carry two ferrocerium rods (one on my keychain, one in my PSK container) and for redundancy a mini BIC lighter. I have a fixed blade knife and as backup (or spare) a locking folder. I have two pens in my pocket and one in my PSK. Usually I have one small flashlight and a Photon as a spare. I also have spare batteries for my handheld radio.