I took all of my stash out and tried to organize it today. How very humbling. Here I thought I had done better about acquiring yarn. Well, I probably have not been acquiring yarn but I'm not using it up very quickly either! There was quite a bit off stuff in there I had totally forgotten about. Yarns that need projects! Not to mention yarns that need loving homes. I photographed what needed photographing and put it all in Ravelry. My grand total is now 39661.5 yards, or 22.5 miles of yarn. That doesn't count all the partial balls I have hanging around, nor does it count a kilo and half of the lightweight softball cotton I got from Kristi, because I don't know the yardage on that yarn and I can't find that information online anywhere. So, the estimate is a bit short.
It may still be smaller than some other people's stashes, but it sure looks like a lot of yarn when it's spread all over the living room.