This tip in Forbes’ ten rules for building wealth starts moving away from retirement planning in the strictest sense and starts dabbling in good personal finance advice: reduce and avoid credit card debt (and all other debt too, but start with credit cards).
Forbes recommends ranking them by interest rate and paying off the highest rates first (duh), leave the low interest debt for the end and even then consider just making minimum payments and putting the funds towards other things. An interesting bit of trivial: “Supreme Court Justice Clarence Thomas was still paying off his school loans when he joined the bench.”
Source: Fortune