I drink about 2-3L of green and/or wulong tea a day. It has no sugar and about 100-120ml of caffeine per 600ml bottle. Every convenience store here in Taiwan

I drink about 2-3L of green and/or wulong tea a day. It has no sugar and about 100-120ml of caffeine per 600ml bottle. Every convenience store here in Taiwan sells at least half a dozen teas that fit this profile, they're as cheap as soda and I love them! Soda (or worse, diet soda) just grosses me out, though. It's just too sweet and too acidic.