If you don't like the spinning head, you have to like sparsify

If you don't like the spinning head, you have to like sparsify - save space on qcow2's

Save some space after you copy a qcow2 image!
http://blog.patshead.com/blog/2009/09/saving-even-more-qcow2-space-with-zerofree-and-sdelete.html
zerofree and sparsify are now my best friends as well. Thanks Pat!