The creation of subsistence and settlement pattern taxonomies, and the definition. So I started only launching Skyrim from SKSE with Steam in offline mode that was about 500-700 hours of play ago. It will screw something up, and I'm not modifying my game anymore at this point. When they announced the creation kit update a while back, I figured.nope. Anything that didn't seem just right in a mod, I'd go in and tweek until it worked more to my liking, so most of the mods I'm running are very, very different from the way they started. When a update came out, I was extremely flipping careful, did full backups first, tested extensively, etc. Since that time, I really haven't even looked at new mods I've created characters, tweeked the mods I liked, played them until I thought of different approaches (usually up to around level 30 or so), then started new characters. I reached what I considered a perfect-for-me mod setup back in Sept of last year.