Hide Vector sidebar is a user script by PleaseStand that hides the sidebar of the Vector skin. To access the navigation links, you can temporarily show the sidebar by choosing "Show sidebar" from Vector's drop-down menu. Firefox users should be able to press alt-shift-a to hide/show the sidebar, but users of other browsers such as Internet Explorer are out of luck. If you use one of those web browsers, I would appreciate it if you could suggest an alternative accesskey (alt-a conflicts with the shortcut for the Favorites menu). Alt-a appears to work with Chrome. Ctrl-opt-a for Safari.
A screenshot is coming soon, but it is not here yet. The script, however, should work exactly as I describe—I successfully have tested it on most of the big five web browsers. I don't know whether or not it works on Chrome, but if it works for you, please tell me.