Susan Estrogen, as irreverent conservos call her, is a chichi law professor, TV pundit, and an absent-minded parent of two children. Strange, how a person can be preoccupied with something as unimportant as the number of female columnists at the L.A. Times, but an effortless, important task, like keeping track of her child's pizza days, confounds her. C'mon, Suzy, you can do better.