A lifetime of work by a world expert in debiasing boiled down into four broad strategies in this video. A nice approach to this topic from the academic side of rationality.
Disclosure - the academic is Dr. Hal Arkes, a personal friend and Advisory Board Member of Intentional Insights, which I run.
EDIT: Seems like the sound quality is low. Anyone willing to do a transcript of this video as a volunteer activity for the rationality community? We can then subtitle the video.