!! OMG, they're changing: Credit cards !!
According to this article in The New York Times, many credit card companies are going to start charging interest immediately after a purchase is made instead of giving you the currently-standard 30-day grace period. What you get in return? The same worthless, constantly devaluing air miles you have been receiving for free until now.
I think we may soon see a spike in debit card use among responsible consumers.