Back in January, we noted that office supply chain Staples appeared to gearing up to begin selling Apple products in its U.S. stores for the first time. Staples employees confirmed the announcement several weeks later and late last month the company began selling Apple accessories in its U.S. online store. Apple accessories have already been making their way to some brick-and-mortar Staples stores, with our sources indicating that at least some locations will also be selling a broader range of products, including Macs, iPads, and iPhones. One source has now shared screenshots of training materials for Staples sales associates, revealing trainin