I had a VB with DD1 and ELCS with DD2.
Take a camera in to the operating theatre - DH was able to film DD2's arrival, which is brilliant to be able to watch.
Definitely get the cannula in your non-dominant hand. When I had a VB with DD1 I had a cannula in my right hand and it came out because I was trying to look after DD1. They then found it really hard to get one in when I needed a blood transfusion. I didn't have any problems with the one in my left hand when I had DD2.
During the actual CS the spinal made my blood pressure fall which made me feel a bit sick and woozy - if you tell the anesthetist they will give you something that makes you feel better. I was a bit surprised afterwards when I was rolled from side to side so that they could wipe me off. As the spinal wore off in recovery I became quite shaky, but that stopped fairly quickly. The feeling woozy and shaky made me reluctant to hold DD2, but DH held her instead.
I ate loads of fruit and didn't have a problem with wind/constipation.
Take the painkillers offered. The pain wasn't nearly as bad as I thought it might be, but probably because I had enough painkillers.
My CS recovery has been much easier than my VB recovery, but my crap VB recovery was why I had an ELCS.
Take a range of baby clothes with you. Our DD2 was unexpectedly big and none of the newborn and 0-1 month clothes we had with us fitted her, so we had to send my mum out for bigger clothes.