Mini Shopaholic: A Novel, by Sophie Kinsella.
I was first introduced to Sophie Kinsella's writting when I read The Undomestic Goddess, about a successful London attorney who flees the city for the country and accidentally takes a job as a housekeeper. I read and loved the novel (film version coming in 2011) because I identified with the main character. I enjoyed the first several books of the Shopaholic series for the opposite reason. Fashion-conscious, single, overspending - Becky Bloomwood is everything I am not. So as we move through the series and Becky becomes more like me - gets married, has a baby, and parents a two-year-old - I find her antics less and less charming and more annoying. Will this woman never learn?