In today’s information age, you can’t be too careful, and you’d treat unwanted credit card offers as you would sensitive information and shred them. If you’re like us, we get at least three or four different offers from credit card companies every day that mail is delivered. Sometimes all we get in the mailbox is junk mail! A Businessweek.com column pointed to a way to opt out of credit card offers for up to 5 years and even permanently.