Getting big returns from financial portfolios, whether through stocks, bonds, ETFs, other securities, or a combination of all, is an investor's dream. But when you're an income investor, your primary focus is generating consistent cash flow from each of your liquid investments.Cash flow can come from bond interest, interest from other types of investments, and, of course, dividends. A dividend is the distribution of a company's earnings paid out to shareholders; it's often viewed by its dividend yield, a me ...