I sure felt overwhelmed, too.
What I did is I appointed my sister responsible for getting food. I bought a gift card to a 24 hour grocery store so that when labor started, I had food ready for us and the midwives. This was just incase I was broke the week of delivery.
As for the cleaning, there is no easing a mother's mind on this issue..we will just clean, organize...start all over.
Have fun with it!