Oh God, I'm so stupid.
I had a large package arrive from CDJapan yesterday. As a friend offered to buy me a calendar for christmas this year, I thought that was it. So, I didn't open it. Just a few mins ago, I spoke to that friend on MSN, and they said that they had received the calendar. Therefore, the large package I had was Secret! I quickly opened it just now, realising why they had sent it in a large package, I had completely forgotten it was coming with a poster, Doh! Surprised it arrived so quickly just using standard airmail too.
Stupid me