Adding to the list
Many good ideas already listed, and I bring those items too, but here are some things that have not been mentioned yet that I like to have....
herbal tea called Throat Coat (sometimes mom strains her voice during vocalization or pushing)
http://www.traditionalmedicinals.com/?id=28&pid=75
a rubber garden pad to kneel on (me or mom)
clif shot blocks (quick energy for me or mom)
http://www.clifbar.com/food/products_shot_bloks/
A couple of pieces of swim noodle (helpful in the birth tub)
A bath pillow for the birth tub
change of clothes for me
tampons for me (nothing brings on my period like a good long birth!)
hand mirror for mom to see when pushing
small camping headlamp (for me to read, take notes, when room is dark) Midwives have often borrowed this at births
something to read for me
some good birth music in case parents forget and are not at home
camera
water bottle for me
high protein drink for me
bendy straws (OOH birth kits seem to have only two!)
slippers for home births
business cards
pda with all my contacts, calendar, resource lists...etc
rubber gloves ("borrowed" from the last hospital birth, when I am at an OOH birth and need to clean up something with body fluids...etc)
antibacterial gel for water free handwashing
I bring way too much stuff, but feel like I would rather drag it than want it...I honestly use about 10% of what I bring.
Sharon
Follow Mothering