I came across a wonderful blog with lots of good ideas on how to catalogue and store all you have a lot of so you can find what you seek fastor have an overview of what you have to avoid buying it again :)
At the Twitterpated With Paper blog you can see more.
I made a catalogue on my punches.
I promise there will be pictures of it later on of what I made.
Mine is another variation of the one I saw, I started to make one exactly but found it a bit awkward so I adjusted the meassurements a bit here and there and then found a way that works best for me :)