I got a job as a new grad there. It really helped me to re-read some of my old OB notes. I reviewed mother and baby head-to-toe assessments, common postpartum medications, medications used for a hemorrhage, postpartum complications, and basic care for the newborn. My floor also takes some antepartums so I reviewed some of that too, like pyelo, hyperemesis, gestational diabetes.
Also, my floor gives handouts and booklets to moms for education purposes, I took those and read them myself. I asked the breastfeeding consultant if I could follow her around during rounds to learn how to assist people with breastfeeding. I asked a lot of questions to my preceptor and took notes. Good luck!