More stuff to remove are all those .rsr files in your geometries folder.

And the stuff that's really eating disk space... bump maps in .bum format.
If you've been working with P4 in the past, you'll find plenty.
Before deleting them, make sure you still have the .jpg version of your bump map.

 

 

 

Yesterday's the past, tomorrow's the future, but today is a gift. That's why it's called the present.