I just keep a series of text files named "Jeep", "PSKs", "CERT", "Travel", "EDC", "Office", "BOB", etc. They're just lists, but I put a set of brackets at the beginning of each line with either a space or an "x" (if that item is currently in my kit). That's how I keep track of what needs to be replaced or added.<br><br>It looks like this excerpt from my EDC list:<br><br>SIGNALING<br>---------<br>[x] Acme "Tornado" whistle<br>[ ] 1" x 3' bright yellow & orange ribbons (This reminds me I currently need to replace these items.)<br>[x] Cellular Telephone w/ roaming service<br>[ ] Cellular Telephone w/ roaming service & built-in GPS transmitter (This reminds me to keep this item in mind for the future.)<br><br>EMERGENCY DEVICES<br>-----------------<br>[x] Leatherman Micra<br>[x] 2 "Ranger" bands <br>[x] mini disposable lighter<br>[x] white "Photon II Micro-Light"<br>... and so on down the list ...