When preparing for a holiday grocery shopping trip, start by planning the dishes you'll make and creating a shopping list accordingly. Take inventory of what you already have at home and organize your list by categories. Choose a store with great holiday deals and bring reusable bags for your groceries. Begin shopping with non-perishable items, and save fresh items for last. Be mindful of expiration dates and consider buying extra ingredients for unexpected guests. Don't forget beverages, snacks, and dessert items, as well as disposable tableware and decorations. Before leaving the store, double-check your list to ensure you've got everything. Finally, unload and organize your groceries at home, storing perishable items properly.