Discover cards are currently not available on CNBC Select and links have been redirected to our credit card marketplace where you can review offers from other issuers like American Express or Chase.

Our opinions are our own. A low interest credit card saves you money by reducing the cost of debt: When you're paying less in interest, you can pay back what you've borrowed more quickly.

Credit: Catherine Falls Commercial/Getty Images Credit: Catherine Falls Commercial/Getty Images ...

Short, playful videos help preschoolers learn phonics.

Neighborly kindness, empathy shine in fab preschool series.