This is what I packed, what I used, and what I could have left home:
Cellphone chargers: NEED
Birth CD: I didn't get to listen to any music because in the induction room I was in with another woman, and by the time I got to labor and delivery I couldn't even think about the room's atmosphere before I was whisked off to an emergency c-section. But if I had been in a single room for the beginning of labor it would have been nice to have music.
Lotion: NEED. Unfortunately I brought a really perfumed lotion with me so I didn't use it much, because I didn't know how it would react to baby's skin. If I had to do things over, I would bring something with a more mellow, or no scent at all.
Flip Flops: Good for use in the shower.
Slippers: These were useful for when I was walking the halls. better than the hospital socks, but didn't expose my toes like my flip flops. I couldn't reach my toes at the end of pregnancy, so they were looking ROUGH lol.
Nursing Pillow: This was great to have while I was establishing nursing positions. I have the My Brest Friend Deluxe Pillow. I don't use this during the day anymore, but I still use it for night feedings, so she can fall asleep on it and it's easier to transfer her back to her crib.
Going home outfit for baby: I brought one in newborn and one in 0-3 months. Even though she was almost 9lbs she still fit the newborn outfit.
Her first outfit.
Pajamas, tank tops, going home outfit: all unnecessary. I wore the hospital gowns while I was there, and left in the same outfit I came in.
Nursing Tanks/bras/pads: personally, my milk didn't come in until about an hour before we went home (3 days after birth) so I didn't need any nursing clothes and used my first pair of nursing pads on the way home.
Belly Binder: I have this one and didn't wear it while in the hospital. The BIG mistake I made was not wearing it on the way home. Every bump the car hit on the way home was painful. I learned my lesson and always had it on for rides for the first couple of weeks. It really helped with abdominal pain and helping my organs get back to where they were supposed to be after the baby left a big space in there.
Socks: never used them. The hospital socks were much better.
Lanolin: my savior when I first started breastfeeding. I only had a cracked nipple for a few hours and no other nipple problems outside of normal soreness. If you are going to breastfeed, don't forget this. I don't know why hospitals don't provide it. I used Lansinoh brand.
Underwear: never used. The hospital's mesh underwear are the way to go. I wish I had more to take home with me when I left!