Grey water is a concept I had never heard about until recently. I have been rather frightened/ concerned about environmental issues since I was around 13 and I am always trying my best to lessen my footprint in new ways. Grey water is about re-using water you might pour down the drain to then water your plants or even flush the toilet. I loved to read all the recent great ideas over at the wonderful Sew Green. Please take some time to read and think about these ideas too. As something I had hardly given a thought to a year ago, it all now seems so very sensible. I am trying my best, but there is always more- it gets a bit overwhelming sometimes.