The majority of news and media outlets have spent tens of thousands of words deciphering the millennial generation - that the group aged 21 to 35 - and for good reason. Since the fastest growing consumer demographic, as well as one that is spending at an amazing pace, companies in each sector are coveting this high-potential industry. Already, the demographic spends almost $600 billion a year, equal to nearly a third of daily-per-person expenditures.