The Saturdays by Elizabeth Enright
Set in the 1940s, this is the first book in a four-book series about the Melendy family, a mom and dad and their four children who live in New York City. In this book, the four children pool their allowances so each of them can have a special day once a month on Saturdays. The book chronicles each child’s misadventures on his or her Saturday. This is a fun story about a more innocent time in American history when kids had more freedom to be out on their own without parental supervision. I recommend all four books in the series.