Like our social security numbers, birth dates, and phone numbers, our ZIP codes are one of many seemingly random number sequences etched in our minds. But, for the most part, the only people who know ...

Nowadays, people don't send letters to one another when they want to catch up. You may get holiday or birthday cards from your parents, grandparents or other family members and friends, but for 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 ...