Can I say though, its amazing how much yoga clothes weigh! I have had to re-pack several times to get my bag under 20kg. I can see the guys rolling your eyes here, but hey its just a girl thing.
Another hint from Luke who used to work at TT, was to just buy everything in black that way you didn't even have to waste any time, energy or brain power co-ordinating outfits. Sorry but I just can't bring myself to do this! I'll take the chance that I will still have enough energy to at least co-ordinate my clothes. :-)