A summary of the past 18 monthsI have talked too much about cash flow. I just mentioned cash flow by dividends: I reach $1000 Dividend Milestones, which is nice, but it is only a small part. I also discussed credit cards before: Credit Card: A Big Cash Flow Generator. Today I want to show you how much I earned from credit cards. I mainly swipe American Express cards as the points I earn can be transferred to a brokerage account for cash investment. There are 3 ways to earn points: Welcome Bonus(The most generous way to capture points)Using cards every day(a persistent way to earn)Refer Friends…