pads - since my first birth when i had to send Dh to woolies to buy more pads, I always packed three packs of 10 and left one at home where he could find them if I needed more. If you don't use them in hospital you will need them for home anyway.
Breastpads - you don't really need them until your milk comes in, but it never hurts to take box JIC - you will go through them really quick when your milk comes in as you need to change them after every feed.
Bag - I have always packed a pair of jocks, socks, deodorant, toothbrush and toothpaste for Dh in my bag as he liked to freshen up with a change of undies afterwards as you don't know how long it will go for kwim? he always felt better after that and it recharged the batteries for another few hours afterwards when you are taking soooo many pics of you both wtih bubs.
Baby clothes - my hospital supplies clothes (those daggy nighties that tie at the back) but I always took my own clothes for them because i wanted them to look good LOL. The hospitals will have blankets/wraps etc so you only really need one for going home. We always went down the street and brought a special going home outfit too (hospital lets you have a 'gate' pass to go down the street for an hour or so)
Maternity bras - packed 3 and would wash them out if I needed to
Knickers - at least 7 pairs
toiletries - always buy what I need and have it packed ready to go so I am not searching the house for stuff when the time comes. Plus you will use it at home anyway.
Misc - pen, phone, puzzle book (the nights can get lonely/boring)
The one single thing that I found most important to take (after learning the hard way) was to take a nice soft face washer for drying the boobies. The hospital towels are always so stiff and scratchy that when the boobs are getting a bit war torn it really hurts to dry them off.
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