I agree with the others - having a few things planned ahead of time is a good idea (just like with having a baby vaginally). :)
I was glad that my parents were here to help out, but one of the things that I was especially glad for was that they encouraged me to walk around and not just stay sitting. We went for slow walks outside which, I think, really helped me feel better faster. We didn't do anything strenuous, just very slow walking outside. Even walking around in the house was helpful.
I know this doesn't really help you with answering your preparedness question, but as I'm sitting here thinking, I realize that I can't really recall what was especially helpful to me beyond that. (Guess it's just a blur at this point, huh?) My husband does most of the cooking in our house and my parents did housework like laundry, changing sheets, etc...
Also, be prepared for your c-section scar to feel really weird for a long time. To this day, the area is still a bit numb to the touch and it's a strange sensation to me. (My daughter is 16 mos). The scar only feels weird when I touch it, not in my clothes or anything. I don't think that that slight numbness ever goes away, but I could be mistaken.
Oh wait, I did think of something...if you have things you'll need that are on a different level in your house, have them already on the same level as where you'll be spending most of your time. My doc didn't want me going up and down stairs for the first few days and having most of what I needed near me versus asking people to constantly get stuff made it easier.
Hope this helps a bit!
H.