Some hopefully helpful tips:
I was booked in last csection of the day - I was starving!!! Make sure you bring some snacks, I found chocolate biscuits and some chocolate sweets to be the best, maybe a lucozade sports for afterwards. They do give you toast, I ate it in about 2 seconds flat I was so hungry.
BIG BIG BIG knickers. Poor DH went shopping and bought the most unfortunate belly knickers with butterfly's on 3 times bigger than my regular size (at my request) but you know what, perfectly comfortable and not tight - can fit giant maternity pads in. Terribly unsightly but worth it.
Night dresses for the first week or so
Everything reachable for the foreseeable
Peppermint tea and peppermint capsules were recommended by friends due to trap wind but honestly I never experienced it but handy to have just incase
I was having flannel washes for the first week, and relying on dry shampoo. They make you shower in hospital, it can be uncomfortable so if you can have someone (DH maybe) help you lay stuff out so you can easily get about in the bathroom.
Hot drinks really helped ease the discomfort
Pleaseeeee take painkillers regularly, even if you start to feel good the pain can creep back up. I found keeping to a schedule and taking note of what pain meds I had and when was ideal.
If you're breastfeeding then a body pillow helped me support the weight of baby against my scar, I'm busty and my chest was huge at this point so the pillow really helped with discomfort and my baby was 10lb so really heavy to carry against my scar, pillow was great
If you can move about as much as you can that's great, obviously don't over do it but I found moving about and small walks to really speed up recovery
Dresses for the first week or two helped, again I didn't know how sore the scar would be and DH had to do a little clothes shop for me
Good luck, you'll do great and I hope these tips are handy xx