How to Fly for Free

Kossy@FINEDAYS, flickr

This year, I earned close to 300,000 airline miles, and only 20,000 of those miles were actually accumulated in the air. Essentially, what this means is that I've flown for free on pretty much all my trips. I even flew first class from London to New York City with British Airways with my miles, paying only the taxes associated with the flight. So how did I do it?