Research published in the European Journal of Social Psychology found that forming a new habit takes an average of 66 days. Simple habits, like a two-minute morning prompt, can stick in as few as 18 ...

The best private student loans offer competitive interest and annual percentage rates, have low origination, disbursement or prepayment fees (or none at all) and are offered by credible lenders.

Editor's Note: APYs listed in this article are up-to-date as of the time of publication. CNBC Select will update as changes are made public. With a high-yield savings account, your annual percentage ...

You could buy your way in with a paid Priority Pass membership, but it's often more economical to flex your credit card benefits.