Interesting and entertaining thread - I was searching around and stumbled on these:

http://216.92.79.148/greatkilt/breacan04.htm
http://216.92.79.148/greatkilt/breacan05.htm

Of course, there's no way to guarantee authenticity, but it certainly does appear to be a valid method the putting a great kilt on without laying down. I'll have to give it a try myself once I get mine made.