Cheap=Sustainable.

I just realized that cheap equals sustainable. This came from observing my husband's dad's behavior. He does not care for the environment. Basically he thinks global warming is an anti- christian, anti-American campaign. And, he would never be seen entering a supermarket carrying recyclable bags; that is, unless he is shopping in Target. Target refunds their customers a nickel per re-usable bag they shop with, so Jim will actually brings his own shopping bags to this establishment.
After this initial observation, I started paying closer attention to his behavior. Jim turns the lights off every time he leaves a room. He does not take baths and criticises his family when they do so in his house, because he does not want to waste water. He shops in Good Will, to save money and carpools as often as he can.
Although Jim's only motivation is that of saving money, he does a lot more for the environment, than most of the people I know, who walk around professing their environmentalism, with organic cotton t-shirts.