If you need more eggnog or ingredients for another batch of Christmas cookies, watch the clock today. Why it matters: Most grocery stores close earlier than usual for Christmas Eve and many will stay closed on Christmas Day.

As millions travel for the holidays to be with family and friends, many people may need a last-minute grocery store run whether it's to make an extra batch of Christmas cookies or ingredients to add one more appetizer to your Christmas dinner menu.

If you need to make a last-minute run to the store to pick up something for your New Year's Eve party, Walmart will be an option for you this year, as the company told USA TODAY their stores will be open regular hours on Dec.