"A Superwoman doesn't waste anything, especially not her life." The follow-up to Superwoman (an ironic title), Superwoman 2 deals with making the most of the time you saved with the first book. It is designed to make the most of what you've got: family, a man, perhaps children (the most expensive modern luxury there is), friends, a home, perhaps a job, some free time and the Welfare State.
Her aim is to help you enjoy your family, as opposed to servicing them and to enjoy a rewarding life of your own if that's what you need.