I got my first credit card over three decades ago, as a college student.

Since then, I’ve used credit cards to earn hundreds of thousands of dollars in travel rewards.

We’re talking an average of two domestic trips a month, and at least one yearly overseas trip.

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Here’s how I cracked the code on free travel.

I use all this information to formulate a custom credit card and award travel strategy.

They typically choose cards likeThe Platinum Card from American Expressor theChase Sapphire Reservebecause of their benefits and bonus points.

The ideal card for these purchases earns more than one point or mile per dollar spent.

For someone with a Sapphire Reserve, for instance, I’d typically recommend aChase Freedom Unlimited.

Yet doing so usually offers just one cent in value per point redeemed.

Caution: In addition to taxes, watch out for fuel surcharges when redeeming rewards for flights.

Some airlines charge massive surcharges that can negate the value you’re receiving.

You should only apply for multiple credit cards so long as you’re able to manage them responsibly.

Also, budget for any welcome bonuses you’re trying to earn.

Sometimes, cash is king

It’s not always the best strategy to use your points.

stash your rewards for times when they go furthest, but don’t hoard them for years either.