I'm going to have to send on Monday too. I thought I'd get it ready for this afternoon, but in spite of Mandykaye's reminder I forgot to get a box yesterday, and I didn't have time to find one today.
But I'm going to send airmail this time, regardless of cost. It's sort of an experiment to see if it really takes significantly less time than surface to Australia. I'm skeptical, but it has to be tested.