It happens to me, but in almost unexplainable manners.
You see, every now and then I have visions in my head while I sleep. Not dreams, just little pictures of scenes.
Then, the next day, I'll look at something a certain way, and it seems as though I've done so before, which I have, hence those pictures.
I just sounded so freakin' crazy, didn't I?
Meh. :S
So yeah, I do have a lot of Deja Vu moments.