What else is empty?
In an article on CNN.com, Bush was asked what he carries in his pockets. Elsewhere (I really should keep track of where I read this stuff) someone commented that the contents of Bush’s pockets was analagous to a saying that “the fewer keys you have, the more power you have” or something like that. I was thinking that the less you have in your pockets, the less you have in your head.
This also reminded me of a cool Flickr tag: what’s in your bag?