One specialty retailer on this year’s Fortune 500 has been steadily climbing the list for the last decade. And it might not be one you’d expect. Coming in at number 1-19 is Dollar General --the discount retailer where you can buy a huge variety of items - from a box of Cheerios to a pair of earbuds--all for a sweet deal. Since 2000-9, it’s jumped a total of a hundred-and-40 spots up the Fortune 500. Today, Dollar General is the largest U.S.