Offering free shipping can be a great way to increase sales and stand out from the competition. It can be done in a variety of ways, such as setting a minimum purchase amount, offering it only for specific products, or offering it only to certain locations. It is important to consider the cost of free shipping, such as the cost of packaging materials, as well as the cost of shipping itself. Additionally, it is important to make sure that the customer understands that the free shipping is a limited time offer. Finally, it is important to advertise the free shipping in order to make sure customers take advantage of the offer.