One very important lesson to be learned in forex is that the month of March is time for Yen repatriation back to their home currency. The fiscal year accounting process in Japan determines this, and the majority of repatriation is done in the first 3 weeks of March.
Plan for it, and exploit it. Downmoves in Yen pairs are impulsive and powerful. The moves down, because of a negative swap, are relatively short-lived, but exhibit massive pip swings.
