I am on the road this week looking for houses in Southern California, and one thing struck me on the plane ride. U.S. Air sold advertising space to Zicam on its fold down tables -- ALL OF THEM. Little billboards under your drink as you fly. Is this just a smart allocation of space or signs of an Airline in trouble? Also slightly troubling, U.S. Air is now charging for WATER, soda, snacks, and of course spirits. I did not see a pay slot for the restroom but perhaps that innovation is not too far away. Are these things signs of desperation that might make you think twice about flying with that airline or is the airline efficiently using its assets.