Razor maker BIC is celebrating 40 years of manufacturing this year.  The BIC Classic, rolled out in 1975 and the company launched its first women's razor, the BIC Classic Lady in 1978.   Since 1975, BIC has manufactured more than 60 billion razors. Each year, 2.6 billion BIC razors are purchased worldwide.     The company’s newest razor is the BIC Flex 5, which has five flexible blades and a uniquely designed handle with a “balancing sphere,” which the firm says provides for better shave co...