Rule Breaker Investing

The last Wednesday of the month means it's mailbag time! David answers your questions about how to avoid watering weeds, why adding to winners is the key to investing success, what to do with big losers, and "potentially" much more. Submit your own question for next month's mailbag: Twitter: @RBIPodcast  Email: rbi@fool.com Share your opinion on your favorite stocks, and keep score on your predictions alongside David on Motley Fool CAPS.