I personally have a folder called Game Editor. In that I have subfolders : Information, Install, Programming,Tutorials.
Information folder : I put there all the important files I download on the forum ex Jazz's follow_mouse bitmap, GE's Coordinates bitmap etc ...
Install folder : There I update new GE install and keygens.
Programming folder : There I put all my personal work done with GE, each work in differnent subfolders. Note that for each of these files, I have my data folder, my .ged file, one folder called Preparation (where I prepare my work (3DSMax, Photoshop ...)) and another one called Export Files (where I export my .ged to Windows exe, PPC exe ...). Sometimes I have a
Script folder to save some important script code that may be useful later.
Tutorials folder : There I store all the important tutorials, notes, code generously written on this forum.