Boy did I underestimated myself. It turned out that for short-sleeves, I actually had 99 of them hanging in my closet. Admittedly, there are a handful that I haven't wear for a while (say a year or two), and a bunch that I bought but haven't got a chance to wear them (after all, I do live in the Midwest where it's not always warm and toasty)... but even excluding them I probably would still have 80+ (Note to self: find a time to donate those).
Honestly, I really should cut down on the buying... but reality? I just bought #100 and #101 today.