Your delivery strategy can also allow you to increase the average cart of your buyers. 

Indeed, setting a minimum purchase is a strategy very often used by many websites. The principle is simple: delivery becomes free from a certain amount. For example, if the average price of your items is 80€, you can set a delivery price of 5€, then free delivery from 120€ of purchase. This way, your buyers will be invited to buy one or more additional items to benefit from the free delivery. Be careful not to set excessive delivery costs or a minimum purchase amount that is too high compared to the average price of your items, otherwise you’ll lose credibility with your buyers.