Sleep when they sleep (if it is DC1)
Keep enough clothes for you and enough baby grows for them (I'd collected what felt like hundreds of the baby grows by DC3) so that you can get a away with putting the washing machine on a little as possible.
Don't cook, have ready meals or re-heats from the freezer.
Have one set of visitors a day and NEVER turn down an offer of help or an offer of a cup of tea or items from the shop.
Do Ocardo.
Remember all babies are different, that really great tip that your friend gave you might not work for you, that doesn't mean that you are doing it wrong, your baby is just different to hers.
Same as above for mothers, we are all different, I have friends with babies that did stuff that really worked for them that wouldn't have worked for me in a million years.
Enjoy it!! The mantra 'this too shall pass' works both ways, they won't fall asleep after a feed and nap blissfully on your lap for the afternoon forever.