I drink filtered tap water. Comes through our refrigerator door. I prefer the taste of filtered tap over bottled any day. I've frequently read that municipal water is safer anyway since city water supplies in the United States and Canada are tested and closely monitored, whereas there's no regulation or standard monitoring or testing of bottled water. I have some old wide-mouth Aquafina bottles that I wash and re-use, filling them with filtered tap water so I have something to carry it in. I don't go in for buying bottled water, just like I don't buy the whole Starbucks coffee phenomenon, either. If I'm going to buy a drink, I want it to have carbonation (or at least 70 proof!).