[Zope] ZOPE - Size reduction ???

I recently transformed my web site into a zope site. It's fantastic no question about that but I am a bit warried about the size of the web site. I already had to ask for user quota increase and it looks like I'll have to do it again soon. I got rid of the tutorial, products I did not need, the unnecessary doc files I deleted the quick start directory and I am flushing and packing the database often. What else can I do to decrease the size of ZOPE? Regards, George