Some of the world's best first-class flights cost well over $10,000 but you can often get them for under 100,000 miles. A good travel credit card will help you accumulate these miles faster. See Business Insider's list of the best travel rewards credit cards »Get the latest tips you need to manage your money — delivered to you biweekly. Aspirational, bucket-list travel is one of the best uses of travel points and airline miles, in my opinion. You can transfer Amex points, Chase points, Citi points, and Marriott points to Singapore Airlines' KrisFlyer program, so you have lots of options for earning the requisitive rewards.

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