I am a member of virtually every frequent-flyer program out there. Not necessarily because I fly with a variety of different carriers, but you never know which airline will offer you the lowest fare, so I like to be prepared. Just about every major U.S. airlines offers a frequent-flyer plan, and many foreign carriers are starting them. These programs allow you to earn free trips, upgrades (e.g., from Coach to First Class) or other awards based on how often you fly on that airline. In some programs you can earn credit by using specified hotels, rental car companies, credit cards, … Continue reading →