I love hot tea! My favorites are chai, Earl Grey, Lady Grey, and Irish breakfast. If I really need an energy boost, Yogi makes a "Sweet Tangerine" that has a great flavor. I add just a splash or milk or dab of honey if I'm feeling decadent.
Other than that, my water bottle is always by my side.
I do drink coffee in the mornings a couple times a week, but I know it's not great for hydration...