I would spend day with oh and kids and make a big special fuss of any children you may already have and let them know what great big bros and sis they are going to make!!!!
I spent day before keeping busy and kept my mind of things, checked I had everything in hospital bag and made sure I bought some treats for shower and also some nice juice and snacks to take in as with c secs you may be in a bit longer than normal,I only stayed in 48 hrs after op this time but first time was in for over a week!!!! so maybe buy some magazines/books to keep you occupied!
I just had a csec last thurs and it was a fantastic birth experience for me, its planned this time whereas first was emerggency, I only got told on the tuesday that on thursday baby would be delivered but in them 2 days I didnt have time to really flap or worry I just had to focus on enjoying time with my dd before going in and making sure I was fully stocked up on nappies/groceries etc as getting to shop is a no no this week!