Greenzer has an article up comparing the use of water bottles to water filters and reusable drinking bottles.
Greenzer by the way, is a one stop shopping location for earth friendly goods. They have the most comprehensive listing of earth friendly things I’ve seen.
If you are looking for earth friendly gear check out Eco-Gear.
How about a recycled wind storage device? See Storvino.
Vegan Fashion online is an interesting place to check for your Vegan clothing needs.