Retailers all face the same conundrum — figure out what people want to buy and have it in stock. Amazon sends stuff — everything from clothes to appliances to toys — to giant warehouses around the country, in anticipation of orders. When newer stuff arrives, the company has huge amounts of inventory that hasn’t sold which ends up trashed. Now, Amazon says it’ll stop destroying the goods in the U.S. and the U.K., and donate them instead.