Sign up for the Chase Sapphire Preferred Card and get 40,000 points when you spend $3,000 in the first 3 months. That's equivalent to $500 back in travel rewards for flights and more! Plus, when you add the first authorized user to the card, you will get 5,000 bonus points on any purchase made within the first 3 months. You'll also earn 2x the points on travel and at restaurants, and 1 point per dollar on everything else. There's even a 1:1 rewards point transfer for this card, which can be used with participating travel partners like United and Hyatt. For example, if you earn 1,000 in Ultimate Rewards points, this equals out to 1,000 partner miles/points. There is no foreign transaction fee and no annual fee for the first year (after that it's $95).