I'm just starting to think about this, so this isn't a complete list
-flip flops (that can go in the water) for walking around/showering.
-my own jammies, going home outfit
- outfits for baby/hat, diapers if you don't want the hospital ones
-cameras, extra batteries, chargers (including for the cell phone)
- up to date phone/e-mail list for announcing
- snacks (granola bars, apples, easy stuff)
-extra hair elastic
- any meds you're taking...