Flip-flops for the shower and walking around the halls. Or your own socks. I just hate hospital socks, not comfy at all. Phone charger. My own pillow. Snacks for SO (lots...)
Comfy clothes. nursing bras. nursing pad. sanitary pads. Shower stuff- shampoo, conditioner, ect. Pump if you feel to much pressure in boobs( not all babies take to breast right away if you choose to breastfeed) snacks. Anything that would make you feel at home basically. Going home outfit. Carseat.
I also brought my own pajama shorts (it was August) because I wanted to get out of that gown as soon as possible 😊