For example, there are a lot of recolors of objects, hairs, etc. I also make sure I don't have duplicate items. Oh and I also separate new CC in a different folder to test it first. Obviously if you have few CC it doesn't compensate to have so many sub-folders, but if like me, you have over 5GB, then it's good to have it all organized because it's easier to spot bad CC that way. Not sure if that makes any difference but some people say it does. Clothes have sub-folders for each gender and age and inside those there's tops, bottoms, outfits, etc.) I also delete all spaces and special characters from the files and try to make the names as short as possible (but always include the creator's name).
Since I use a ton of CC, I separate them all by main categories first (CAS, Accessories, Clothes, Hair, Shoes, Furniture, Decorations, Build, etc.), then inside those categories, I have different sub-folders (CAS has skins, eyes, makeup, tattoos, skin details, etc.
The code in the Resource.cfg file allows to have 5 sub-folders inside each other, I think, so you can most definitely have multiple ones. I was afraid the CC wouldn't work if it was in folders.
Here's hoping that my issues are somewhere in the smaller batch that were flagged as conflicting by TS4 Mod Conflict Detector. I'm already kicking myself for not staying on top of it better, because at best, I'm going to have to weed through 1000 files to fix my issues. I'm looking to implement this in TS4, because I'm finding that as more EA content is released, the more bugs crop up from cc conflicts even worse than they did in TS3. For TS3, I have a system where I separate, test and eventually merge together cc as I accumulate it, and this has worked out well in the sense that it's always been really easy to identify conflicts and get rid of cc that's glitching my game. I have around 12k package files, not including the 1000 files I pulled out just last night because I'm trying to find what files are causing a few bugs in my game. To OP, I have been a very lazy simmer and have been dumping my cc packages all together since launch. So long as they were all separate, the game loads fine though a bit slow. So I take it they fixed issues with the program? I always used this method for package files in TS3, but when I gave merging a try for TS4 (about a year ago now), the merged files crashed my game upon loading. Just make a back up folder incase something goes wrong You can search youtube for a tutorial even non CC creators can do this easy step to make your game run smoother Game starts to lag when it has to load a bunch of different files 1 after the other Just a note guys if your game ever starts to get really laggy from all the CC you may want to DL S4PE (sims 4 package editor) load all the CC you KNOW you love into it and fuse them together as 1 package