In addition to those nice, respectable, visible menu commands and tool shortcuts, all sorts of nifty shortcuts just hang around in Illustrator without a single menu item or tool associated with them. These shortcuts are handy commands, such as Increase Type Size: Ctrl+Shift (Windows) z+Shift (Mac). Even better, every one of these commands can be customized. Simply scroll through the Keyboard Shortcuts dialog box to find every command that exists in Illustrator. (Choose Edit→Keyboard Shortcuts to get there.) If you find one that looks as though it may be useful to you, give it a new shortcut.