My son turned 13 in April, and while I didn't do anything more special than usual, I did give him the book The Thundering Years which is a book for teens affirming the positive power and potential of the teen years. Also, my dh and I made a pact that we would work hard to avoid making any derogatory teenage years comments in our house, not so easy to do somethimes in a culture in which the angst of teen years is always overriding the joy. There are many ideas for rituals and rites of passage in the book, and I thought my son might rather choose one for himself for another year than have us plan it for him, in keeping with respecting his growing toward adulthood. It is nice, though to recognize this time in a positive way since our culture is really lacking in rituals that native and other cultures have used for years to welcome their children into the adult community. Let us know what you decide to do and how your dd liked it!