Thanks to Amazon and other online retailers, customers have grown to expect free shipping, so many sellers simply price their items to factor in the cost of shipping. Most customers also expect a quick turnaround time.
"You only get that top-rated 20 percent discount on your fee if you offer one-day handling time," Tudesco says. "The emphasis is really on sellers to be shipping things out the door immediately. If you think there's going to be any delay, make that known in the outset or just plan on posting the item when you know you'll have the time to get to the post office."