If it is one thing I have learned after reading "green" sites like this one, most greens don't seem very thoughtful about parsing green claims. So this fairly outrageous ploy by hotels will probably work:
Guests checking into the Westin Kierland Resort and Spa or Sheraton Phoenix Downtown Hotel can do more than order breakfast or request privacy by hanging a card outside their door.
They can also decline daily housekeeping service.
The hotels are among a small but growing group who have taken their in-room "green" initiatives up a notch, adding the option of no cleaning on top of existing options to reuse towels and forego fresh sheets.
What a great idea! Redefine green as "not doing the basic job you are paying me to do." This is amazing chutzpah, and at some level I tip my hat to them. Spot a market inefficiency -- in this case the incredible gullibility of the greens -- and exploit it.