I'm going to be annoying and make a huge list all of which fit into a nifty little tote bag:
socks, nightgown, slippers, robe - all black - (hides the icky stuff)
I didn't have time for much of the music, movies, books things, my boys were in a hurry - so that was a waste of space.
lotion, toothbrush, hairbrush, toothpaste, shampoo (I got trial size/travel size of all of these things) That way I could have them packed and not have to raid the shower before I left for the hospital (and saved space too)
clothes for baby.
clothes for you to come home in.
snacks for your husband - if it is a long labor you won't want him running down to the snack machine - so bring stuff.
if you are going to nurse, bring a nursing bra. when you get engorged you'll want it.
if you aren't nursing bring a bra a size too tight. You'll want it when you get engorged.
cameras - video, digital and film (always have back up. when my first was born my camera took pictures that didn't come out in developing. Everone of them blank, good thing we had the video camera or I would have nothing of those precious moments.)
as a writer, bring a pen and a notebook.
list of everyone's phone numbers you need to call (or have them all saved in your cell phone)
an extra empty bag:
there are things the hospital will have that not only do you use while you are there, you will be charged for so you need to take them with you, including, diapers, wipes, pads for you, bulb syringe for baby, peri-bottle, (love that!), alcohol pads (if its a boy and he's circ'd).
don't forget the carseat!
If I think of anything else, I'll add it here.