So you have developer mode on and every page that you visit displays the in-line editor at the bottom of the page. I love that thing, but as handy as it is, when I'm testing pages or trying to demo something for someone, it gets in the way.
Don't you wish there were an easy way to disable that?
Try appending this to your VF page name within your URL:
?core.apexpages.devmode.url=1