I prefer tea with breakfast but I'll drink Diet Coke if no tea is available. When I was in college, I drank regular Coke 24/7. I also used to have frosted cherry pop tarts for breakfast every day back then. And yet I've never understood how anyone can eat cold pizza for breakfast. To each his own, I guess.

As for drinking the recommended amount of water each day, I saw an episode of Food Detectives the other day where Ted and his food techs determined that we get about 30% of the water we need each day from the food we eat. For the rest, I've heard from several sources that you can include beverages like coffee, tea, and soda even though they have caffeine when you're figuring out how much fluid you've had to drink each day. And of course juice counts too.

I drink lots of water on most days. I keep a water bottle with me at work and in the car, and I drink from it all day. At home I keep a glass of something nearby while I'm watching TV or sitting at the computer and I refill it as soon as it's empty. I find that just having it handy is the important thing, because you take regular sips, and it all adds up.