A parcel in eBay Inc. packaging is seen on a conveyor belt with other small parcels at the United States Postal Service (USPS) sorting center in Louisville, Kentucky, U.S., on Friday, Jan. 13, 2017. Starting January 22, the cost of mailing a one-ounce first-class letter will return to being 49 cents, up from 47 cents, where it had been since April. Photographer: Luke Sharrett/Bloomberg via Getty Images