If the Walgreens story was any more American, Horatio Alger would've written stories about it. As a young boy, Charles Walgreen worked in a shoe factory, but suffered an injury that dashed his sports dreams against the rocks. At 16, he went to work for a drugstore for $4 a week, the first of many such jobs in the pharmacy industry. He became increasingly disillusioned with the old guard and decided to branch out on his own. He secured a loan for $6,000 and, by 1901, the first Walgreens store opened on Chicago's South Side. His work ethic and business acumen changed the industry forever and today Walgreens is the most trusted pharmacy in the country.