You may have some extra leftover whipped cream after frosting the cake. You can freeze it in a freezer safe sealed container for up to 2-3 months to use at a later date. Or if storing in the refrigerator, it will stay good for 2-3 days. You can enjoy any leftover whipped cream by adding a dollop to your morning coffee, topping your pancakes or waffles with it for breakfast, or dipping fresh berries in it.