Water
When I read this post from Catherine, I couldn't believe Kriston couldn't believe that she drinks 7 liters of water a day. Ogged can't believe Catherine drinks that much. I won't bore people with the intimate details of my water consumption, but I'm pretty sure I drink more than seven liters.
It used to be that I drank a lot of caffeine and also smoked a ton of cigarettes, which left me feeling dehydrated frequently and drinking a lot of water. Quitting smoking would, I would have thought, lead me to cut back. Instead what happened was that my Diet Coke habit got somewhat more severe for a variety of reasons and I started exercizing regularly, both of which boosted water consumption. More to the point, however, I needed to pick up a new habit to replace the frequent smoking breaks that used to punctuate my working day. Endlessly refilling my water bottle and consuming the contents seems to have done the trick. I don't like to chew gum, and it seemed like a healthier alternative to snacking all the time.