Today’s top story: How to save like a superhero. Also in the news: The best way to pay for your next flight, the big mistake one-third of credit card holders are making, and warnings about Amazon third-party accounts.

Save Like a Superhero: Roth IRAs and 529 Plans
Superpowered savings.

Cash or Points? The Best Way to Pay for Your Next Flight
NerdWallet’s 2017 Travel Card Study

The big mistake one-third of credit card holders are making
Stop wasting your rewards.

Beware Hacked Amazon Third-Party Accounts
Watch where you shop.