‘Tis the season for holiday feasting — and leftovers. Just make sure you have plenty of space in your refrigerator and freezer to accommodate them. Overloading shelves or placing food too close to the refrigerator’s circulatory fan could impede the smooth circulation of air. This could lead to a food safety issue or potentially affect the lifespan of the refrigerator. Make sure to clear some space in the midst of the holiday rush.