Phone charger, chapstick, lotion, personals such as deodorant and hair products, own nightgown robe slippers hair Brush, toothbrush, hard candies, clothes that will be COMFY for you to go home in... car seat and outfit for baby (of course)
Most hospitals provide everything for baby except for outfits, my hospital provides diapers,wipes, socks, blankets, hats, diaper rash cream, and formula if you're bottle feeding or breast pads and nipple cream if you're breastfeeding
Call your hospital first and see what they provide, to give you better idea of what you might need. I packed with my first and didn't use a thing bc my hospital provided everything I needed and then some. I'm not even bothering with a bag this time.