How many The Sims 3 packs do you play with at the same time?

I have everything except Supernatural and they are all on every time I play I do not use any CC or Mods. I have no problems plays great. the only thing I do that perhaps others do not do, Is I delete all school, My sims have never gone to school, as I like playing with them. I do not have any bad results doing this, have always played this way forever. I love the sims, sims 3 is my favorite.