Infants need to wear one additional layer of clothing over what adults would wear, except when it's very hot. Think about what season it will be when baby arrives, and plan the type of outfit accordingly. If you'll need to be outside in the cold, baby's going home outfit should fit inside a fleece coat or suit, and you should have a warm hat, as well. If it's hot, a single layer of clothing is fine, but you may still want to buy a coordinating sun hat or shade blanket to protect your baby's skin.