No, I don't. I make things to give away, or for myself. It's a hobby for me, and I don't need to know or care what I've spent. I buy what I like utilizing sales and coupons and gather fabrics for projects that are rolling around in my brain. I also trade fabric with a friend. I have a nice sized stash that keeps growing!! That being said, if money were an issue I certainly would be more prudent with purchases and monitor my spending. Many people track their spending for business or tax purposes. Just do what's right for you!