Take an evening off. Have some wine & chocolate. Review all your notes & lists. Highlight anything that you need to remember. Add items that you forgot before now. Talk to your family to be sure everyone is up to date on the tasks they need to handle. Make a few calls or send texts so you can update your guest list. You may find someone has made other plans & forgot to call you or someone had plans fall through & needs a place to spend the holiday.
However, more than anything, RELAX! Things are going to get very busy very soon.