I wanted to own a grocery store, be an astronaut, and be a doctor. I'm halfway through medical school, so if all goes well, I'll get to be one of the 3.
Actually, when I was little, I used to love playing with those toy doctor's kit. But one time, my mom bought me a nurses kit because it had a picture of a girl on the front (otherwise, it was exactly the same, just said Nurse's Kit on the front) and I apparently threw a fit saying I wanted to be a doctor and not a nurse. My mom ended up returning it and getting the doctor kit. I was around 4 at the time, I don't remember it, but my mom tells that story to everyone.