I’m looking for a book that is about a bad day, but *not* Alexander’s. The book I remember has a main character who is school-aged. The character wakes up late, puts too much sugar on his/her morning breakfast (after the mother warned him/her not to), and ends up wearing slippers to school. The kid decides to reset the day by going home at lunchtime and starting the day over. Puts the right amount of sugar on breakfast, wears the right clothes to school, and has a better day.