Buy a Nalgene
•More than 25.5 billion plastic water bottles are sold each year in the US.•
•More than 17 million barrels of oil (not including fuel for transportation) were used in plastic bottle production.
•Bottling water produced more than 2.5 million tons of carbon dioxide.
•It takes approximately 3 liters of water to produce 1 liter of bottled water.
•The total amount of energy used to produce, transport, refrigerate, and dispose of a plastic bottle of water may be as high as the equivalent of filling a 1 liter bottle one-quarter full of oil.
Source: Waste Management World, The Pacific Institute
If you don't like Nalgenes then check out these cool waterbottles from the http://www.lazyenvironmentalist.com/pages/recycling/index.php