To store leftover rolls, ensure they are fully cooled and store in airtight container. Can be left out at room temperature, but they will last much longer if refrigerated or frozen. To make rolls ahead of time, follow all cooking steps up to the point where you add the rolls to the pan and cover. Instead of allowing to rise, refrigerate overnight. To bake the next day, allow rolls to come to room temperature and then bake and frost, per the directions.