Walk Around Naked
There are nudist colonies still in existence! There are even christian nudist colonies. Well, I guess Adam & Eve were naked so maybe that's their biblical basis. However, I don't think this is really the best idea. It could be a very scary vision for most of us!
According to the statistics:
It takes 250 gallons of water to grow enough cotton to make just one pair of jeans, another 165 gallons to dilute the pesticides and fertilizers used to grow it, according to the The Green Blue Book: The Simple Water-Savings Guide to Everything in Your Life (Rodale, 2010). If going completely nude 24-7 isn't an option, this is one more reason to buy vintage clothing when you can, and keep your clothes until they wear out instead of replacing them according to the whims of fashion.