Tap water is (almost) free. In our town it costs $9.12 Per 1,000 gallons of water. That is less than a penny per gallon. Our town also has a few quarterly fees. All told, the total cost of water in our town is $.00985 per gallon, let's round up and call it a Penny.
Think about that every time you reach for a soda, juice, milk, beer, glass of wine etc...Your bloated waist will thank you too.
Or when you send your kid to sports practice with a bottle of Gatorade. Try filling up a bottle with tap water (you don't get points for sending Bottled Water with them, I don't care how cheap you think it is, it doesn't compare to tap water). Just remember, Evian spelled backwards is naive.