i had a box of stuff.... aromatherapy oils (i think i had clary sage, lavender and rose oil), a tennis ball, a hand held fan, bendy straws, nappy and 1st outfit for baby, towels, a couple of muslins... all kinds of stuff. we didn't use any of it!! just the towels, the birth pool and one of the shower curtains.
very helpful to have some really nice soft, light towels or blankets or something to put over the baby during skin to skin, to help keep them warm.
and have blankets handy to drape around YOU as well, to keep you nice and warm straight after the birth.
have food in for you and the MWs... a couple of frozen home cooked meals, sandwiches, biscuits, drinks etc.
an energy drink for you to give you a boost if you need it near the end
the straws are a great thing to have, so you can keep hydrated even in funky positions
a couple of cheap shower curtains to protect furniture/floor
The other thing is a hospital bag. I did NOT pack one, because I thought that was a bit defeatist. As it was, I did need to transfer and I was not well enough at that point to pack my own bag and you know what men are like!! (or maybe it is just mine). So I went to hospital without nearly enough maternity pads, pre-pregnancy jeans that didn't fit, nice knickers, no hairbrush, not enough toiletries.... Not saying you SHOULD pack a bag, but maybe go over it with your OH or birth partner so they know what you'll want if you do go in. Write a list and put it in their wallet or something and then forget about it. You could tape it to your fridge or write it on the back of your birth plan, but hen you'd have to SEE it all the time and you might not want to do that