Excuse the lack of posts but I'm still "chugging" along with the challenge. I'll admit that the biggest issue has been the habit aspect. I find myself reaching for other drinks in the fridge and i have to stop myself. (I don't live alone, so i was unable to simply throw out all the other beverages.)
The only other minor issue that i've noticed is that i'm getting small headaches. A small annoyance. I'm not sure if this is because i'm used to drinking caffeine regularly, or if i'm simply not getting enough water. I haven't been drinking as much in the past few days. I'll up the water intake and see if that helps.