I go through sparkling water like a maniac. Since I hear that carbonation is bad for you, I have been trying to drink more decaffeinated, unsweetened tea. It is tough to change. I wish that I could learn to drink water all the time.
I have been able to pretty much give up sodas, which those are something I have managed to drink a few lifetimes worth in my younger years (I am just hoping I've done no permanent damage).