@BertieBotts I got a baby bath last time and barely used it. I used a bath support instead. DS1 also seemed to prefer it as he was more supported
Also, just in case you have a history of smaller babies in the family (ie less than 8lb) most slings aren't suitable. I learned this with my 6lb 3oz DS. The caboo is suitable for the smaller ones. Also, a sling library is useful to go and try some out once the baby is born so I'd recommend seeing if there's one in your area and going once LO is here.
I also found baby nail clippers easier to use than scissors (and OMG it is so scary the first time you cut their nails).
Hospital bag list from what I remember...
Mums bag:
Button up nighties x2
Dark towels (for shower after)
Wet toilet tissues
Slippers
Big dark knickers x5
The biggest, fattest maternity pads I could find (the padding helps with sitting down)
Phone charger
Kindle
Comfy maternity clothes for going home - I had maternity jogging bottoms and a tshirt
Shampoo/shower gel/toothpaste/toothpast/deodorant.
Water bottle
Snacks (flapjack bars) - I had a short labour so had also packed jelly sweets and glucose sweets which never got eaten.
Things I wouldn't take this time - dressing gown (hospitals are so hot), flip flops for the shower.
Baby's bag - pack of size 1 nappies, wipes (we used water wipes), nappy bags, a few vests and sleepsuits, baby hats (although the hospital gave us one), muslins x2, going home outfit (a nice sleepsuit is my suggestion), if you have memory cards take the "welcome to the world" and "going home " ones.
Dad should also have a bag with a spare change of clothes, book, camera, cash for vending machines (mums get meals, dads don't), phone charger.
I can't think of anything else but am sure my list was longer last time.