Either I wasn't thinking, or I didn't realize StackExchange was a thing when I first set up this (these?) account(s), but I used my AOL screen name as my "Open ID" when I first came here. Now, I realize what StackExchange is, and it seems like a pretty beautiful thing, so I want to make one of those accounts now, but I want all my past questions and such to still be a part of it. In other words: I want to be able to sign into Stack Overflow and Superuser with a StackExchange account, but don't want to start all over from scratch.
Anything you might have to offer on "account merging" or something similar would probably help me out. I have not made the StackExchange account yet because I don't want to screw this up.