If you often fly KLM and sometimes fly other airlines you won’t encounter any problems with the Discover it® Miles. This is the card that is designed specifically to ease the life of travelers. Namely, you earn 1.5 miles for each purchase with the card. If you put most of your purchases on this card, you’ll face a massive sum at the end of the year. And then Discover is there to meet you with its special perk – all the miles that you have earned first year are matched, making it twice as many miles, provided you are a new cardmember. Discover has no annual fee and foreign transactions fee. Miles never expire and you can earn any number of them. And finally, Discover also works great as a card for major purchases as it had a 14-months 0% intro APR period. Note that when the introductory interest rate is over, the ongoing APR will apply.