Here are some more tips and some talk on the wrinkles issue. The relevant stuff is about halfway down under How do we prevent dehydration when we fly. Mentions a Boeing report that says, "In-flight cabin humidities gradually fall on long-distance, high-altitude flights to well below 10%, in many cases approaching 1%." Wow.

http://www.lifewater.ca/fly_tips.htm

[This message has been edited by letiole (edited 12-20-2001).]