Only water for me. I haven't had a pop in over 5yrs; they're for fatties. I'll have a half galling jug to measure daily and will put just a tiny bit of crystal light in it to break up the monotony.
No soda or diet soda. Drink water all day. Have a gallon jug that I add crystal light to. Have one glass of skim milk everyday, and one pre-work out drink before the gym.