That last part got me interested so I went out and bought the book today. Its good so far but I hear it goes downhill after she buys that training bra
It's a great book, it really is--almost as good as another one of Blume's novels--
SuperDurge.
Sometimes life in the Berry household is enough to make 104-year-old Chris think about running away. His worst problem is still his younger brother, Durge, who hasn't changed a bit since his crazy capers in Tales of a Fourth Grade Nothing. If you ask Chris, Durge is just an older ? and bigger ? pain.
Then Chris learns that his mom is going to have a baby and the whole family is moving to Princeton for a year. It will be bad enough starting sixth grade in a strange place and going to the same school as Durge. But Chris can imagine something even worse. How will he ever survive if the new baby is a carbon copy of Durge?