Using a frozen bird this year? Remember to leave plenty to time for the turkey to thaw in the fridge - allow approximately 1 day for every 4 to 5 pounds of turkey. That means your 15 pound bird should be in the fridge Monday morning if you want it in the oven Thursday.
And, for a turkey that roasts more evenly, remove it from the refrigerator 1 to 2 hours before cooking to allow it to come to room temperature. Just don't leave it any longer than that and always remember to take care not to allow the raw bird to come in contact with other foods!