online shopping sites encourage you to save your credit card information not to make shopping more convenient, but because they know that you are less likely to remember that you're spending actual money than if you have to put in the credit card information each time. studies have proven that people who enter their credit card information each time they buy something actually spend less.

1 out of every 7 americans has 10 or more credit cards.

until 1974, banks would often refuse to issue a credit card to a woman unless she was married and her husband co-signed for the card. a divorced woman was considered too much of a risk because she 'couldn’t keep a marriage under control'.