35. Mary Sammons
The day Sammons was named chairman in June, she also completed the Brooks Eckerd acquisition, making Rite Aid the largest drugstore chain on the East Coast. Rite Aid has more than 5,000 stores and expects to generate $25 billion in sales this fiscal year. Sammons hopes her plans to add 1,000 new stores over the next five years will boost razor-thin profit margins and steady the stock. Shares rose nicely in the first half of 2007 but have slumped since.