Safari's Top Sites feature displays recently and frequently visited pages. Go to Top Sites by choosing History -> Show Top Sites or by clicking the Top Sites button in the toolbar. (If you don't have a Top Sites button, you can add one by choosing View -> Customize Toolbar and dragging the Top Sites button into the toolbar.)

You just closed a tab by mistake. No problem. Every page you've visited in the last week or so is in the History menu or its submenus, conveniently listed by the usually descriptive page name defined by the site's designer rather than by some gobbledygook URL. In all likelihood, you'll find your Web page listed in the main menu.

Perhaps an item you need is too old to be listed in the History menu. Or perhaps you have no idea what the name of the page was. What you do know is that this page had Oscar Wilde's purported deathbed quote ("My wallpaper and I are fighting a duel to the death. One or other of us has to go") on it. No problem. You can search through URLs, page names, and, best of all, the contents of pages you've visited.