I'm not sure this qualifies as superstition but I always feel a weird association with coincidences, like they are supposed to mean something. Like looking up at the clock from doing something and its 12:34 or talking about a song or singing it in my head and I turn on the radio and that song is on. I used to drive on a certain bridge and some of the streetlights would go out as I passed, I used to think I caused that. I deja vu a lot. Maybe these are just quirks?