It's very easy to chalk up certain facets of our lives to just being "the way it's always been." From daylight savings time to time zones, most of us don't even give a second thought to the meaning ...

The humble ZIP Code shows up in all kinds of surprising places. Planet Money looks at how it was born, how it transformed the mail and talks to one researcher who argues that it's gone too far. The ...

For some credit card purchases in Canada, a postal code is required as a security measure. If using a credit card in the U.S., you may need to use a ZIP code instead. Many or all of the products on ...

There is still a feeling of excitement when you get something in the mail, or rather when you get something in the mail that is not a credit card bill. Unfortunately, credit cards, and paying for them ...