Here is the spreadsheet I put together for my 72-hour kit. Just click on the button to blow it up to full screen. That way you can see how I've organized it. The item in yellow are items that I have to buy. I even have a rotation schedule for 2011. How dorky am I? Just kidding. This is a GREAT way to keep track of what you've got and when to rotate it out. Do you have a 72-hour kit? How do you keep track of your items? I'd LOVE to know.
72 Hour Kit Spreadsheet