I will take a nice picture for this thread later, but I have been downright neurotic sometimes. Had 9 different flavors of PM2 at one point. Down to like six, now, two or three of which I intend to keep. Have 8 different Espadas, two XHP L's, fancy XHP L, a beat and battered hollow ground AUS8 L, two regular AUS10 XLs, an old AUS-8 hollow ground XL, a fancy S35 XL...
Used to have four 10V Kizer Sheepdogs, and three Spyderco Ronin that I got as a steal.
Some are real collections, like with the Espadas, or my reverse-S collection as I really love those. But that's not exactly doubles.