Baby needs going home clothes.. So do you, I suggest pajama pants or something equally as comfortable. I was wearing a sports bra when I gave birth and it got all bloody so an exta bra wouldn't hurt. The hospital provides diapers n formula if you're not breastfeeding. The thing I wads really glad I brought was travel size toiletries.. Some hospitals don't provided shampoo n conditioner n stuff like that but even if yours does it's nice to have what you like.. Phone charger n carseat..
Absolutely a camera! Chargers, slip on shoes, I had an electric baby massager (which helped a ton with labor), tooth brush and toiletries for both of you. Anything to make yourself more comfortable. Might sound funny but big underwear for after/on your way home. Plus you should grab some of the pads they want you to sit on. They make great disposable changing pads to keep in the car for an emergency. Good luck!
Bring your ipod if your a music person. Idk how long your hospital keeps you but there came a point after I had my first that all visitors went home and it was just me and a brand new sleeping baby and I was kinda bored! Keep in mind clothes for you should be clothes you don't mind getting ruined (one way or another) but you don't have to lay there in a hospital gown with your @$$ either. :) especially if you're anticipating a lot of visitors. I would have whoever is picking you up or driving you home bring the carseat when its needed, you don't want to tote that thing around with you from the laboring/delivery room to your berthing room where you'll be after. Also unless you enjoy hospital food, pack snacks for you! Of course bring a camera, cell phone/charger. They provide a little easy access onesie for baby that's more like a tiny tshirt since they do so many tests and monitoring. You won't need a bunch of baby clothes, they'll just take them off. Slip on shoes for sure because I wouldn't touch the floors bare foot!! But yeah, that, a pacifier if you so choose and your "period panties" and you should be good to go. If you're breast feeding, most hospitals will give you a hand pump and even store milk for you if you ask.