I am beginning to do some research on environmentally friendly key cards. I am amazed at how many different companies are selling these. (Be sure to look for an article on "green" key cards on the Green Lodging News website soon.) I am curious to know if any of you have tried them at your properties. If so, how have they worked for you? Have you had any guest complaints? Compliments? Please let me know by writing to editor@greenlodgingnews.com.

So far I have run across companies selling key cards m