We've been trying to cut back on bottled water at our house for quite some time. There are all sorts of reasons to do this... the environment being a really big one.
We know why people love bottled water. It is is ever-so-convenient. And habits can be difficult to break.
BUT, I found something that might help. Amy's got a really great list of viable alternatives to bottled water on her blog. Including an option for people who love to drink SPARKLING water (something I never thought about).
And trust me, these things really are do-able.
The only place I'd depart from her wisdom is with regard to the Brita pitcher recommendation. If you look into Brita, you'll find that the filtering process is only marginally useful (and really only filters out chlorine taste/odors when it all comes down). So, I'd recommend an alternative. We use a PUR pitcher, which is effective for water in our particular area. But, depending on your water conditions, I'd recommend a bit of research in that area.