We've spoken before on TGC about using full-screen apps on your Mac, but one of the apps that without question is nicer with more screen real estate is Safari.
Safari gets to be rather annoying to use in full-screen mode because of the toolbar. The toolbar and Bookmarks Bar at the top are all jumpy. Every time you move your mouse away from them, they hide themselves, and every time you move your mouse back to them, they slowly slide back into view. It makes a simple procedure like clicking an item in your Bookmarks Bar require exacting precision with your mouse, and take way longer than it should.
There is a setting in full-screen Safari mode that fixes this problem. Go to "View" and enable "Always Show Bookmarks Bar" (or hit Shift + Command + B on your keyboard). This will keep the Bookmarks Bar from disappearing whenever your mouse is not hovering over it. Of course, this should be turned on by default, but such is life. Now the only thing that disappears in full-screen mode in Safari is the menubar (and the Dock).
With any luck at all, Safari is now far less annoying, and thus far more enticing, to use in full-screen mode.