-Bring your own shampoo/conditioner & soap. Yes, the hospital does provide some, but it's terrible!
-Change for the vending machine/cafeteria for your husband.
-Chargers or batteries for your camera/cell phones/video camera/laptop.
-Boppy pillow, or similar
-Slippers, robe
-Bring loose & comfortable clothing, like sweats, and pack your maternity clothes to go home in, you won't be able to fit in your prepregnancy clothes yet.
-Nursing bra/nursing tanks, etc.
When you leave the hospital make sure you take the things home that come with your room: baby wipes & diapers, breast cream, water bottle, nose bulb syringe, peri bottle, tucks, numbing spray, etc., etc. You'll still pay for them, if you take them home or not, so you might as well take them.
Now... you should also get together things for YOU for after you get home from the hospital.
-Breast pads (you will leak even if you don't breastfeed!)
-Lots of feminine pads, in varying aborbancy strengths (you could have post-pardum bleeding for 2 weeks or so)
-Peri bottle (the hospital should provide you with one, take it home!)
-Lanolin cream for your nipples
-Pain relievers: Tylenol, Aleve, Advil
-Stool softener such as Colace or the generic
-Tucks - even if you don't have hemmriods, they help with the vaginal swelling after delivery
-Preperation H
-Flushable wipes
-Premade/frozen meals/take out menus for the days afterwards
-Water bottle to ensure you're getting enough water. A lot of hospitals will send you home with one.
Good luck and congrats!!!