Today I sent a book via Australia Post to a friend in England, and was asked for ID (Medicare card or drivers license, as we have no ID card as such). Supposedly for any packet, no matter how small or big, the sender will have to show identification, and its information is stored in a database (for how long I don't know, as obviously the chap at the post office had no bloody clue).
All I could find with a first quick google is:
You will need to show ID when sending items.
If I hadn't already promised to have it sent this week, I would have just walked out. This is disgusting!