Agreed. Weed, alcohol and caffeine are my top three drugs too, I'd say. Caffeine being the most used.
Personally I've done ecstasy, acid, magic mushrooms, salvia, cocaine, morphine, nitrous oxide, and quite a few different kinds of pills. If you've never tried any kind of hallucinogens before I would suggest trying to get your hands on some mushrooms. Hallucinogens are great though, talk about a mind altering experience.