Since when is flying FC equivalent to Commanders Palace? I have yet to see the Palace serve a sad wilted salad with warmed over chicken and a slice of Sam's cheesecake. Now they may have served Folgers Coffee! FC is just a bigger seat on a bus, nothing more.
I no longer wear suits to the ball game, theatre either, and sports coats just remind me too much of Herb Tarlek (anyone remember WKRP). I do use my buggy whip occasionally, but thats a story for another time.
My favorite thing when in FC and very casually dressed (flying to work on Sundays from Dallas in 100+ days in shorts) is to fold my boarding pass in half. When the DYKWIA busybody asks if I know this is the FC line, I just state "Oh it does not matter, they never check anyway". I know its stupid, but its a little fun.