I think all of my superstitions are a result of my OCD. (Which is very, very minor, but still there; it's just not worth medicating.) I have to go through every food aisle of grocery stores if I'm shopping for more than one thing. (Or picking up prescriptions.) I can skip the cleaning aisles, but not if I'm at Top Foods, where the cleaning aisle's the first one after produce. I can skip alcohol and hygeine, but if I need soap or cat food or something, I have to go down the entire aisle.
I think what distinguishes this from superstition is that I have no idea what would happen if I didn't, and I know it's possible not to, but I'm doing it anyway.
Oh, and Larry, you should've met some of the Filipina girls with whom I went to high school. It's not that they weren't superstitious, exactly, but that their level was the same as pretty much everyone else's.
"Now everyone was giving her that kind of look UFOlogists get when they suddenly say, 'Hey, if you shade your eyes you can see it is just a flock of geese after all.'"
"You can't erase icing."
"I can't believe it doesn't work! I found it on the internet, man!"