Great idea about wrapping the bottle in aluminum foil...I'll do that with mine...just keep in a place where any child cannot access it. (I have a 2 yearold...best to keep it away from him)
I don't think that dropping the Miracle-Mineral-Supplement
in drinking water will have any MAJOR benefits other than purifying the water itself...and if you are just using it to purify the water, then the longevity of it shouldn't matter. Once it has killed what needs to kill in the water, it can safely go away....as long as you don't re-contaminate your water...which unless it takes you days to drink a pitcher of water, would be hard to do.