254584. I drink Water, milk, Dr. Pepper, and orange juice, in that order. Pretty much all that I drink. Dr. Pepper is about once a day for caffeine.
Could probably do with phasing out Dr. Pepper, but it's the cheapest form of caffeine at the quantities I find help me be mentally sharp. I don't need *much* in the way of caffeine, so your standard cup of coffee usually contains way too much caffeine for me.