These are just a few things I found really useful when I had my baby.  They've come from an assortment of sources (friends, midwives, family).  They helped me so hopefully some of you will find them useful too:

• Birth centre - When I first found out I
  was pregnant I had no inclination towards using a birth centre as I figured I'd want all the pain relief I could get my hands on.  However, after attending ante-natal classes I was more open to the idea of trying to do things as naturally as possible and decided to book into the hospital's birthing centre (I was comforted by the fact that this was right next to delivery suite if I changed my mind).  I spent the first 5 hours in the birth centre in a big bath which provided really good pain relief for a period of time.  I did end up wussing out and going to delivery to get an epidural but I'm glad I at least spent a few relaxed hours there. 
   
• If there are things that you can't put into your hospital bag until you're ready to go (eg, toothbrush, hairbrush etc) make a list of them.  If your labour comes on hard and fast (like mine did) you may have trouble thinking straight.  The list will make this easier and you can give it to someone else to gather the items.
   
• Things to take to hospital etc:
  
  A squeeze bottle (eg, sauce or drink bottle).  Fill with lukewarm water and squeeze over your nether regions when going to the toilet.  It really helps to take the sting out of your urine if you have stitches/grazes/tears etc.
• Urals - again, these will help take the sting out of your urine.
• Prunes - these will help keep your first bowel movement nice and soft (plus drink lots of water) as you won't want to be straining or pushing.  You'll probably not have a bowel movement for a couple of days after delivery as your system tends to clean itself out during labour (nature's way of being kind to us perhaps?).
• Soap free bar/cleanser - This will help you to clean delicate areas gently.  An unscented one is good too as you don't want to overwhelm your baby with different scents (especially whilst establishing breastfeeding).
• Unscented deodorant/anti perspirant - given the proximity of your underarm to your breast an unscented one will help to not overwhelm your baby with scent.  I used the Mitchum one and found it so good I'm still using it now.
• Soft toilet paper - the stuff in hospitals tends to feel like sandpaper - not good when your swollen, grazed, stitched etc.  Be kind to your behind!
• Ear plugs - even if you have your own room, hospitals tend to be noisy places.  You can still hear your baby through the ear plugs but they block out some of the background noise when you're trying to get some sleep.