System Preferences, or by clicking on the Dock icon that looks like a set of gears. Each preference pane is labeled to give you a clear idea of what type of elements it lets you change: Appearance, Spotlight, Displays, Network, and so on. Many of these preference panes contain settings that can help you save time and make your computing experience better or more efficient. Here are five of my favorites:]]> Services -> Mail -> Send File, and the file will be attached to a new e-mail message, just waiting for an address and delivery. Or select a chunk of text on a Web site in Safari, then choose Safari -> Services -> Make New Sticky Note, to create a new note containing that selected text.]]>