I'm a worry-wart naturally. I'm always afraid something is going to come up and I'm not going to be prepared for it so I end up getting things ready way too early lol
As this is baby number 3, I pretty much know now what I do and don't absolutely NEED at the hospital with me. All of those huge lists they give you to "help" honestly make things more difficult for me lol
Plus, when you consider how much stuff you bring, and then how many people come to visit in the hospital and bring something for you and/or baby, you have that much more stuff to take home .. It's just an awful lot of stuff to juggle back home I think.
So. My absolute necessities are..
*For Me*
Toothbrush
Toothpaste
Hairbrush
My own shampoo, conditioner, body wash, loofa
Lip balm
Comfy stretchy shorts (for wearing under the hospital gown)
Comfy (but cute) pants and shirt for visitors/pictures/going home
Nursing bra or camisole
Nursing pads
Socks/slippers
My own pads (I HATE theirs. They feel like I'm wearing a diaper!!)
My own granny panties (I can't stand those mesh undies lol)
Snacky foods like trail mix, crackers, etc.
A couple magazines to browse through if I actually do get bored and want to read (this has never happened before, but I can just see me twiddling my thumbs if I don't come prepared)
Phone
Charger
Camera, extra charged batteries
Body pillow (I find these much more comfortable to use than a boppy. I like wrapping them around me in a U (like the boppy) and resting baby and my arms on that.
Comfy warm blanket (Their comical "sheets" and "blankets" don't keep anyone warm.)
Plastic bags for dirty laundry (The ones at the hospital are so thin and tear really easily)
*For Baby*
Cute receiving blankets (the hospitals are just so .. used.. and never super cute)
Warm blanket
Little baby beanie (again, the hospitals are just used and ugly)
Socks
Onesies
Two cute outfits for taking pics and going home
Either the baby book, or a notebook. It's never too early to start writing down everything! It also helps if you don't bring the baby book, to bring a notebook so you can transfer everything later and don't forget any details

And of course, the car seat!
The list always seems long but most of the things I bring are small items. Whew. Now I'm starting to get the urge to start getting everything together, and it's way too early for that still for me! lol