There’s a lot of speculation about whether or not the Federal Reserve is going to raise the interest rates that it charges banks. No prediction here, but if and when it does happen, financial advisor and author Nancy Tengler warns, “The first thing banks do is raise interest rates; the last thing they do is raise interest on deposits. So there’s a gap that’s bad for consumers who don’t pay attention.” The List's Jimmy Rhoades has 3 tips for managing your credit cards.