http://latimesblogs.latimes.com/emeraldcity/2008/03/filterforgood-f.html

Ditched the bottled water habit? Then you'll want a water filter -- and a to-go bottle. And those in the water biz are a step ahead of you: Brita and Nalgene have combined their forces to create the FilterForGood campaign, encouraging people to drink filtered tap water in to-go reusable bottles instead of continuously buying bottled water.