I'm with the Loafmeister on this one - I drink about 3 litres of water a day, although I do like a little fizziness around lunchtime, just to break things up. I have one fruit tea in the morning (usually Pink Grapefruit), and then it's water all the way. In fact I'm off to refill now. The reason for this is tied up with the absence of caffeine from my diet - almost two years now - and the ready availability of water from the coolers. Also, I happen to like the tiling in the Gents, which I get to study several times a day...