My hospital provides a lot for new baby so the only things I was told to pack for baby was a car seat, going home outfit, and a thick blanket.
For my bag, I was told to bring 4-5 changes of undies, a set of clothes to go home in, something to suck on during labor-like hard candy/popscicles, music, pillows with brightly colored cases, any scents that I wanted, basically anything that would make me more comfortable. Of course I'm bringing some toiletries and some comfy slipper socks as concrete floors are cold!