A handy javascript bookmarklet that forces the standard salesforce.com UI instead of a visualforce UI. Might come in handy for a select few so I'm posting it here. To "install" drag the following "Force SFDC UI" link to your browser's bookmarks bar. Then go to any visualforce page that uses a standard controller (most of them) and click!

Force SFDC UI

For those worried about malicious js you can view the "pretty" version.