A few years back, my son Daniel converted me away from bottled water. I had thought that drinking pure and healthy water was an act of environmental awareness, but he helped me see it the other way around. Spending resources to make little bottles that could only hold one long drink, to put water into those bottles, ship them all around the country, put them on shelves and sell them one by one, could hardly be corrected just by recycling the bottles after we used them. Better to stick with plain old tap water, or tap water we filter ourselves, and a reusable bottle that might last years.
Once Rabbi Israel [Salanter] and his friend Rabbi Mordecai Meltzer were walking through the narrow sidestreets of Vilna. They stopped and entered a synagogue to join in the minchah service. Rabbi Mordecai poured a copious stream of water over his hands while Rabbi Israel [Salanter] by contrast, merely moistened his, hardly using any water at all.
Astonished Rabbi Mordecai blurted out:"Do you not, sir, observe the custom of washing before praying?"
"Indeed, I do," replied Rabbi Israel [Salanter]. "But I see here that the synagogue is frequented by a limited number of worshippers. Visitors do not usually come here. The shamash certainly intended to provide just enough water for the regular worshippers. If we waste a large quantity, the deficiency will be felt by one of the congregants. He will upbraid the shamash and withhold the few pennies he normally gives. And so we will be guilty of denying the shamash his livelihood."
-- The Mussar Movement Volume 1, Part 2, pages 219 - 220
And the Lord God took the man, and put him into the garden of Eden to cultivate it and to keep it. --Genesis 2:15
Now godliness with contentment is great gain. For we brought nothing into this world, and it is certain we can carry nothing out. And having food and clothing, with these we shall be content. --1 Timothy 6:6–8