I found some Maxis clothing that doesn't show up in game, these use the textures and meshes that are already in the game so no unneeded duplication. These outfits are for female mostly, however I found two male pajamas that I wanted to use. There is a child shorts mesh. There are assorted clothes for adult female sims. I will add to this page as I create the files for things.
Update! Please download the fixed files that make the hidden stuff show up among the maxis content.
How to install
Download the zip
file and extract to your downloads folder. The files are named as they show up in SimPE
so you might be able to tell what is what. When you are in game you can delete the ones that you don't want to use.
What you can do with these
You can do what ever you want to my uploads, use them as a base or whatever, you don't have to credit me, but it would be nice if you did and if you sent me a link to your upload. You may make recolors of my stuff and host them on pay only sites or in donation packs. Please do not take them as they without crediting me.