NEW YORK (AP) — U.S. consumers have gotten used to shopping the world without paying customs duties on the international packages they receive from big e-commerce companies like Shein and Temu, specialty shops and businesses that sell goods through online marketplaces like Amazon, Etsy and eBay. That era is about to end. On Friday, the United States plans to eliminate a tariff exemption that allowed imports worth $800 or less to enter the country tax-free.