Click anywhere on the Web page, except on a link or image, for a menu to appear. Windows users will need to right-click to generate this menu. Mac users can simply hold down the 'Cmd' button and then click your mouse or track pad. When the menu appears, click 'View Page Source' and a new window will open with all the source code for that particular page.
Better late than never on my response. But this is just so much easier than all that other stuff.