It's good to pack a baby bag for sure. Warm clothes cause it'll be cold, a snow suit if you're somewhere that gets snow, diapers, wipes, pacifier, burp cloths, blankets, they won't let you leave the hospital without a car seat. Also don't forget about a bag for yourself with toothbrush, toothpaste, hair brush, extra clothes, something to do (lap top, iPod, crosswords, etc...