During the housing bubble, credit-card vendors inflated interest rates – even as the Fed slashed them – and found increasingly sneaky ways to usher their customers into perpetually indebted servitude. Such as:

•Raising rates as high as 32 percent on existing balances, with no notice, even when they've always been paid on time.

•Compressing the time between statement mailings and due dates.

•Charging interest on debt already repaid.

•Posting on-time payments after their due date – and then charging late fees.

•Neglecting to disclose how much interest and time it will take to pay off a balance with minimum payments (if ever).