Interesting but there are a lot of things I would not suggest. For example, the article suggests that expiration month on credit cards be listed "exactly as it appears on the card" while failing to mention that there is no standard. The author suggests you do NOT include the name of the month next to the number but many cards use the name of the month so listing expiration as: 01-Jan, 02-Feb makes a lot of customers happy. I would read this article as great suggestions but it doesn't mean the advice applies to your store perfectly.