Note that unlike many other airline mileage programs, redeeming miles will not extend your mileage expiration date. (milesbriefs.com)
Most airline mileage programs sell all kinds of products, so how much do you have to fly to earn a smart TV, a diamond watch or even a box of chocolates? (petergreenberg.com)
Also, you can only make one transfer per member to any single airline mileage program in any 24 hour period. (cardsfortravel.com)