WHO'S A NERD LIKE ME AND KEEPS INVENTORY OF THEIR MAKEUP PRODUCTS?

I know, I know. I'm such a nerd for keeping inventory of my makeup products, but it's such a big help. I just updated my list today and realized I haven't been keep up with it. I was about to put in an order for some MAC eyeshadows and when I checked, I already had some of them. And the list keeps growing...