When expecting a second baby, some items from the first child can be reused, but essentials like diapers, wipes, and clothing will be needed. Additionally, consider a second car seat, stroller, or crib if space allows. For feeding, bottles, nipples, and formula may be necessary if not breastfeeding. Safety gear like baby gates and a monitor ensure the baby’s well-being. Health essentials like a thermometer and first aid kit are also crucial. In summary, focus on essentials such as clothing, feeding gear, sleep and safety equipment, diapering supplies, transportation items, and health and hygiene products.