Heh. I fly every week in shorts, birkenstocks, and a tie-dyed tshirt. My apartment is en route between my destination airport and my client site, so I can swing in and change on the way to work. Much more comfy than traveling in business dress. I'm still shocked when all the "suits" push ahead of me in the boarding line though, assuming I must be sitting with the rest of the "riff-raff" in back... Though I do love bumping past the silvers in the upgrade list (I fly over 100K/year easily)... the stunned look on their face when a "kid" in t-shirt and shorts gets their upgrade is priceless. ;-)