Coffee black and strong enough to wake my neighbors. My exes called it mud. I called it delicious. I don't want to taste the sugar, cream, vanilla, chocolate, or any of that. I want to taste the coffee.
I allow myself to have two cups in the morning and no more. I have enough trouble sleeping at night without adding more caffeine.
I do enjoy teas, black, green, and herbals like rosehips or chamomile. But I enjoy those as a treat, not daily fare.