My advice is have no expectations and we all have completely different experiences. In my ignorance I imagined I would be pushing out the pram after a few days and going out for lunch. Some are but if you're not don't worry. I was sore and could barely walk, I struggled with breastfeeding and my baby cried all night (and I mean all night! We couldn't put her down she was hysterical) so we got no sleep. And no sleep does make you feel like crap!
You won't need to worry about not bothering to tidy and clean cos frankly you will neither care nor notice. A clean house with a new baby is just wrong!
Agree with lots of meals in the freezer (even if just means M&S ready meals!)
Also about the baby books. If you do read them read lots and pick bits you like. No one book was suitable for my DD - I could have written one just for her but that would never work for another baby. They are all different and so are you. You're the mum, you know what's best in your heart so don't think the experts always know best.
Set up a home delivery service with a supermarket. Invaluable!
If you are breastfeeding still get things in like bottles. In an emergency (in the middle of the night when your baby is screaming and won't take your breast) you may want to give it some expressed. (or heaven forbid formula - I'd get some cartons in of the ready made stuff just in case).Yes the shops are open but sometimes neither your nor your partner/husband may want to leave the house.
And savour every moment! It's amazing gazing at this little thing knowing it's come from within you and the love is completely overwheleming.
Gosh I could go on forever. Sleep when baby does. Or try. We spent the night time awake with crying baby and stressed and in the day just staring at her sleeping v content. We'd have felt so much better if we slept when she did.
Your hormones will be everywhere. Don't worry if you are laughing one minute and burst into tears the next. It will pass. Nor should you make any apologies. If you don't want anyone in the house - your choice, you had to give birth and are a hormonal minefield so everyone has to work around you.
Oh and last thing - there is the magic 12 weeks (or 8 as some say) that things will fall into place and you will start to know what you are doing!