I barely used any of my stuff (emcs), didn't use the hair bands, i pod, face spray, make up. I can't remember using nipple cream in hospital either.
I didn't have enough clothes for dd and dh had to bring in more. I also had to get dh to bring in clothes for me to wear home as I had planned to wear the stuff I'd gone in with and got meconium covered waters all over it.
Definitely needed pads, big knickers, drinks, snacks, camera and phone, eye mask and earplugs, washbag, pyjamas, dressing gown and slippers for me.
Lots of clothes, hat, carigan, nappies for dd.
Agree with theonewiththenoisychild, there isn't a lot of room in the cubicle for stuff so less is better.