In an example of an ordering method, an application receives an order for a product. The application may be an in-vehicle application resident on a memory of an in-vehicle infotainment unit of a vehicle or a mobile-device application resident on a memory of a mobile device. Without contacting a merchant of the product, the application determines a preparation time for the product. The application dynamically determines an estimated time of arrival of the vehicle or the mobile device at a location of the merchant. The application holds the order for the product until the estimated time of arrival is equal to or less than the preparation time for the product.