Life, like RenFaire is too short to take too seriously.
I've worn my olive drab UK, my Clan Anderson tartan, and Levi's to such events. The Anderson got rave reviews and even a decent handful that knew which tartan it was, being part of the Utilikilt Army is always fashionable (anybody else hear Alan H yell just now ?), and in Levi's just part of the crowd.
If it's not FUN, why bother ?


CT - un great kilted