Tea, either hot or iced, without sugar. It's one of the healthiest things you can drink besides water, and more importantly I just like the taste of it. Plus it has just enough caffeine (25% of coffee), so I can drink several cups throughout the day and not get jittery. I generally try to avoid corn syrup, not just because it's terrible for your body, but also because it makes everything taste absolutely disgusting. I do love the cane sugar-based Coca-cola though. I wish they would offer it for sale in the US, maybe call it "Coke Premium" or something like that. I mean, there's clearly a market for it if people are willing to import it from Mexico.