Contrary to what's been stated, I like the idea of a G/S mods thread (sticky). I have a few projects in the works, (including a custom tank), and don't mind documenting some of those projects here. Caveats;
Everyone will have their own ideas about what improves the breed, and several owners maintain websites that provide reference material already.
I'm sure you have bookmarks of your own, but here are a few basic ones: