next method, the rental carbo news. cally, you get a few hundred points for a one or two-day car rental, but one when company raised the bonus to 10,000 for a one-day rental, george smart went to his local airport and rented almost every car off the lot. how many cars did you rent? >> about 12 or 15 in the morning. and i would get maybe 60,000 to 100,000 miles for a very inexpensive cost. >> reporter: back to rick and our journey through the airport. by now, we were sitting first class on a parked jet that united airlines let us visit. because the point is even first class and business class comes within reach to those who are frequent flyer millionaires. as is evident by rick's trip to the far east. >> we went to china for ten days. we flew from chicago to bay thing, we saw the great wall, flew to shanghai and came back, again, nothing more than taxes. that was maybe $150. >> reporter: in business class? >> in business class, right. >> reporter: fris in flyer miles? 110,000 miles each. but otherwise this would be a $20,