Now that's what I'm talking about! A new extension just showed up on extensions.gnome.org that adds a "Journal" tab to the already awesome GNOME3 overview. It integrates with Zeitgeist to provide access to recently or heavily used categories of items - sort of like "Recent" but all grown up and with college smarts. And installing it is as easy as clicking "On" [assuming you have Zeitgeist already installed].
Journal tab in Overview
A very handy addition that adds to the same concept provided by the gnome-activity-journal [which is packaged for openSUSE, BTW].