I love my screen name, so easy to remember, and it sounds downright friendly, doesn't it? (I've never read that Sisterhood book or seen the movie, and I'm not Greek.) Yaya was my daughter's nickname in college, her email addy and screen name before I accidently stole both and refused to give them back.
LOL -- I like your screenname too!!
The first book, The Divine Secrets of the YaYa Sisterhood", is fun, the sequel is just awful and the movie a big disappointment.