Right now, trees fall east and no other direction. This can be troublesome sometimes, as the most useful part of the tree - the logs - may fall on a ridge or a building or something, and get stuck.
What I propose is that trees can fall another direction: west. If you're standing on the east side of the tree when you're cutting, it falls west. And when you're standing on the west side, it falls east. Simple (hopefully).
Just something that occured to me; thought I'd post it here.