This is a very simple script that adds the rule of thirds guides to the current image.
I used to add guide by guide by percent, then crop, remove the guides and add them again one by one. After many times I did it like that, I decided to create a script to do it faster, for which I had to self train on how to do it using script-fu, to avoid poor portability.
I created the script with my Fedora 8 Linux distribution for GIMP 2.4, but it also works for 2.6.
This script works for any platform that GIMP works with.
This is to use if you have Anime Studio (v5), and want to convert your layered image into an character on that program. The script works on GIMP 2.4.2 and Anime Studio 5, and that's all I've tried it on. Each layer is saved as a 24-bit PNG, using each layer's name as a base, and referenced in the output ANME file. You can choose the output folder for both the ANME file and the image files. You can also rename the ANME file to something besides the base image name, but if unspecified, the ANME's name is the same as the image name, minus the extension.