You want your AE projects to render faster, so you amp up your disk cache allocation. That speeds things up, but now your disk is actually filling up with all that cache, creating a new problem.
You can just delete your disk cache in After Effects preferences UI, or go to ~/Library/Caches/Adobe/’After Effects’/16.0/ (16.0, or whatever version of AE you’re actually using) and delete it there. These both take several steps. And I want to save you some steps. So I made this script called kachekleaner that gets in there and deletes your after effects disk cache.
I put scripts like this on my OSX Dock, and they run with a single click. You really only want to clear that cache in between projects, and not during one. It won’t hurt anything, you would just have to re-render your un-cached project if you wanted to preview it again.
For clarity and quality control, this is the actual one line script, which is also attached in the zip. If the file is not ‘Unix Executable’ on your device, change it’s permissions to 755:
rm -r ~/Library/Caches/Adobe/'After Effects'/16.0/*
Click here to download the script.