@Michael hmm ok, thanks!! I can definitely make sure it's well packed. Will look into this. Do you happen to know if it's expensive or where the international post office is (no worries if not, thanks for your help(
I have a friend who sent stuff to Poland and it was I think ¥650 for 10kg and took 3 months but perhaps that was the normal post.
@dolphin, yes I should do that, but I move on average once every two years and it's getting expensive. Also most of the stuff I want to transport I will use more than other people (e.g. Old Chinese notebooks, electronic hobbyist parts, 7 pairs of old jeans which are probably too big for Chinese girls :D)