Wal-Mart...

• has 2,864 stores in the United States
• has a workforce the size of the active duty U.S. military
• once opened 38 stores in a single day
• is the world's largest retailer
• is the world's largest company
• deals with 21,000 suppliers
• had sales of $244.5 billion in 2002
• sells in three months what Home Depot (America's #2 retailer) sells in a year
• does more business than Target, Sears, Kmart, J.C. Penney, Safeway, and Kroger combined
• bought $12 billion in Chinese merchandise in 2002 - 10% of all China's exports to the United States
• receives 7.5 cents of every dollar spent in a store in the United States (excluding auto parts stores)
• is the #1 bicycle retailer in the United States
sources: Washington Post, Fast Company, others I can't recall