If you're like me you find it annoying when your Sim insists on wearing that super nice custom garment you got them when they take a shower or bath. Fortunately, Sims 4 Studio can fix your entire mods folder all at once so that no garment you've downloaded will show up on the Sim when it shouldn't anymore. You can get the batch fixer at and there is an easy 4 step tutorial that shows how to use it. The fix will not affect hair or accessories so you don't need to worry that your Sim will shower bald.
The batch fix process also makes a complete back up of all the content it changes and it will remove any Sims 3 .package that accidentally snuck into your mods folder at the same time.
The same download includes a batch fixer for CAS items that show up on random Sims too. The tutorial showing how to use that is .