Window/Stack Windows

If more than one file window is open on the screen, this command neatly stacks them so that they overlap by a half-inch or so, as though they're a deck of cards being fanned from upper-left to lower-right. Because this arrangement leaves each window's name bar visible, it's easy to jump from one window to another (by clicking any visible part of it). The active window is the one in the lower-right.