While it doesn't seem to be in print any longer (but is available used) I highly recommend A Medieval Home Companion: Housekeeping in the Fourteenth Century by Tania Bayard.
The book is translated from a 1393 manuscript written by an older French nobleman for his new, young wife. With such chapter titles as: "The Right Kind of Eel", "Take Care That There Are No Fleas in Your Room or in Your Bed", and "Many Perils Come from Talking Too Much" it emcompasses the general care for an upper-class home, as well as how to conduct oneself correctly.
A fascinating read!