Try to cut back on your bottled-water usage. Manufacturing these bottles consumes tremendous quantities of petroleum, and in the end, more than 3/4 of the 70,000,000 bottles of water we purchase (daily!) in the US go straight to the landfills.
I recommend purchasing filter systems for your home: reverse osmosis*, carbon filtration, and pitcher filters. There are many options available to fit your budget or needs. Once filtered, be careful of the type of bottle you store/transport your water in. If you insist on a plastic type of bottle, make sure that the recycle number on the bottom is a #2 HDPE (high density polyethylene), or a #4 LDPE (low density polyethylene), or a #5 PP (polypropylene).
Searching for the right solution for your bottled water is getting easier and easier as manufacturers are realizing the importance of these for individual health and long-term environmental health.
Some recommended resources:
~ The Consumer Search Web Site
~ Nalgene
~ Gaiam
Beary B. Green
Ambassador of Green for Lindamood-Bell Learning Processes
* Please note that while reverse osmosis is great for very clean water, it does have considerable water waste (typically 3 gallons per 1 gallon of fresh produced).
Green Water Tips