Loads of snacks and popper drinks or gatorade.
Small change for the vending machines.
A book

i would suggest the breastfeeding pillow if you are going to breast feeding.

I agree with Ordinary mum that you can get lost in a book and that a needle work is a great item to bring. I would bring creditcard, phone (camera), charging cord & plug, jumper and blanket too.

Snacks, sugary drinks, a portable speaker and charger, spare clothes and some bathers/something to wear that can get wet. I spent nearly the entire 9 hours of labour in either the shower or bath (with gas, yay!) And had my husband right by me. These were the only things I ended up using that we packed. 90% of it stayed in the bag.

Food, water, cushion, blanket and knitting/crochet if you do it. I probably wouldn’t read a book if you are in the room with her the whole time. It can be a bit excluding.

Snacks, drinks, heatpack, cushion and a throw!

Water, snacks, a phone charger, a rug, socks and a jumper. It can be a long wait and hospitals can get very cold.

A water bottle, some snacks, and a charged phone or camera!

Book, food, chargers, jumper

Definitely food, we took a pack of cards for early on, charge and camera for photos and videos!

Definitely snacks and drinks. Mobile phone charger. Some kind of music. Stuff to do to keep you busy as labour takes a while

A change of clothes in case it is overnight, medicines, food.

Take whatever you would take if you went on a outing with your friends. Dress comfortably, think smartly – what do I need to keep me occupied and satisfy cravings – what snacks/food/drinks do I need.
Also keep in your car a overnight bag just in case.

Healthy snacks, phone charger, water, money, a cushion (you may be sitting for hours). Comfy shoes and clothes.

Yes I would bring food, drink, money, a book in case the wait is long, your phone & chaching cord & plug, hairbrush, tooth brush, wear comfortable clothing – layers in case in gets hot/cold