Green tea is a staple for me. Today I picked up some hibiscus and dandelion tea. Very tasty!
I do both caf and herbal teas - the first before noon, the latter throughout the rest of the day. Around two gallons a day. Mostly Lemon and Wild Berry Zinger, and Black Cherry Berry. During the summer I mix them with some lemonaid. Recently I tried Green Strawberry Basil and was surprised how much I like it.