1) Golden oldies techniques for psychotherapy of borderline personality disorder include addressing failures in separation-individuation and confronting self-defeating behaviors. Interpreting abandonment depression and carefully preparing for breaks in treatment are also important. 2) New mentalization-based treatment approaches employ patient education, groups, and a team approach. The goal is to develop the ability to understand one's own mind and the minds of others to regulate affect and attachment. 3) Therapists using mentalization techniques label thoughts with "I wonder if" statements, use transference tracers to keep patients in the present, and co-create safety plans to anticipate difficulties with control.