I have a bag full of stuff that I give to people when they come to my house.
Do theater. Because you'll develop a craft that you'll always have. It'll give you a chance to really learn how to act and you won't go into the world with a few measly tricks that will only carry you so far.
As an actor, I started using dreams more, which is not mystical or anything like that. I just found that I've been using that as a tool to give me another point of view towards the work. It's often surprising but really helpful.