I was working on a treasure supplement, and realized that higher-level treasures would require new or expanded treasure tables, and I didn't like that anything later would supersede the core rules. I would prefer that future materials would expand things; I was able to make a few modifications to the basic tables and organization to increase its usefulness as a foundation module that other modules now can expand on in any number of directions.
Oh, and here's a character sheet I made as well. Because. Character sheets. Amiright or amiright?