Though some companies offer free flat rate shipping, it still may come at a cost. For instance, a clothing store may offer free shipping but at a minimum of a$50 purchase.
Waiting - If you're an impatient person, waiting for your product to be delivered can be a pain. There is a lack of instant gratification and even possibilities of delay when it comes to receiving your items.
Refunds/Returns Disputes - If an item comes damaged or not as described, you will want to return the item or be refunded your money. Depending on where you purchased your item, there can be different policies for refunds and returns; this process is tedious and is prolonged since you would have to ship back the item and wait on the buyer to refund your payment.