I have the same problem. Over the years, I've been hoarding a lot of freestuff in my runtime folder and its taking a lot out of my hard drive space. Now, I want to remove a lot of these files but removing the cr2 files doesnt remove obj and textures associated with them. And I really dont want to manually go and find and delete these files since it would take forever and I might accidentally remove a file which I dont want to remove. Is there a script or utility that can automate the whole thing?