I collect empty bank accounts and a beer belly.
I actually have a bunch of stuff signed. Most of the 8X10's and 16X20's are of hockey guys (Lindros/LeClair, Griffey, Jr., Simon Gagne, LeClair, Gretzky, and Gretzky/Lemieux). I also have a few signed pucks and a bunch of BAP Signature Series autos. Some of my best memories are of sending cards with a SASE to the stadium and having the players sign them and return them. I gotta check the inventory but I know that I got Pops.
I also have truckloads of inserts and rookie cards, including a mint Lemieux rookie. I really gotta go through my stuff.