Keeping track of all your treasure and loot that you've "found" along the way, especially in a long campaign, can get daunting. It's easy to keep a long list of all the things. Even easier, if you keep the list as one of your layouts. However, if you're anything like me, you tend to forget about "that cool thing you have in your pack" until it's too late. Even if you've meticulously itemized it in your notebook.
If you're a visual person like I am, here's an easy solution.