Be green. Buy something.
I've been reading some of the How To Be Green suggestions and a few of them are mind-boggling. My favorites are the ones suggesting that we get rid of our old ecologically incorrect things and replace them with new! Green-Created! Ultra-ecologically fashionable! products which certainly will give you green cred in certain circles. But --- ---

Now, I'm not talking about swapping out an old energy-hog appliance or car for a new energy-miser one. That's an investment in long-term savings. And I'm not talking about putting out a dollar or two for one of those permanent shopping bags that seem to be made out of recycled plastic doo-dads. That's not only sensible, but cheaper than your cup of coffee. I'm talking about -

"Be green! Get a bamboo shower curtain, sustainably made and grown." Fine if you don't already have one; if you have any sort of shower curtain, think about the cost in energy of sustainably growing and making and shipping your new one, and disposing of your old one. Oops! Into the landfill. Or someone on Freecycle picks it up, using gasoline to do so.

"Be green! Tear out your old floors and put in sustainable new ...."

I'm going to leave it to you to do the energy math on that one. Green? As green as a case of seasickness.