I remember last year seeing two different orders of directions for shaking the lulav. In one case people did left, right, front, back, up, down, while in the other they did front, right, back, left, up, down (so "going around the circle", clockwise from front). Is there a "correct" order, or is this just a matter of personal minhag (and people tend to follow the leader)? If there's variation, which communities do it which way?
The Shulchan Aruch (OC 651:10) indicates that the order is forward, right, backward, left (followed by up then down, as indicated by the Mishna B'rura). This is echoed by other acharonim, and, according to the Magen Avraham, even a lefty should follow this order. The Mishna B'rura writes that "this order of the na'anu'im accords with the practice in our lands" (ibid. 651:47).