Experts now recommend treating the Y1.5K change over just like any other day. That is, you should pray upon first arising in the morning, then move to cleaning the house, milk the cows, suckle the calves, dress the children, prepare breakfast, bake and brew when needed, send corn to the mill, make butter and cheese, look after the swine and collect eggs in order to prepare the next meal. Try to leave some time to sew so as to make clothing for the household as well as mend the clothing. The nobility should, of course, make sure that sufficient staff is on hand to see that the above tasks are carried out in a satisfactory manner. The lower classes will find all those duties are carried out by the little woman of the house, ie, the wife.
Rewards are optional for neighbors visiting with fruitcakes and wassail bowls.
It's not really safe to drink, you know, so be sure to have plenty of beer on hand. Also, you won't be using that much water for bathing, so, there's no real need to stockpile. Instead, keep those lovely clove studded oranges, perfumes, and what not handy, to mask any unpleasant odors. By now, you should have already slaughtered, salted, smoked, or sold your livestock in preparation for winter. Check your spice cabinets.