So I picked up this SIGG water bottle. While I was looking for a Kleen Kanteen, I settled for the SIGG after learning that it has an organic *indestructible* coating on the inside to keep the water tasting pure and obviously keep it away from the aluminum (which also causes cancer).
Now that I've used this SIGG, I am absolutely amazed at how fresh the water tastes! I had some water left over for 1 day at room temperature and it didn't taste bad at all! Very, very effective. Very expensive also. This little bottle cost me $25. I think that's comparable with the Kleen Kanteen, which I still want to try. Now I'll be hunting down a sport top to make sipping on the go easier.