Use Context Menus. I prefer to call them context menus, for two reasons. First, it helps distinguish them from other types of shortcuts in Word and Windows. Second, it better describes their use, which is to provide quick access to commands based on context. For example, right-clicking a text selection gives you quick access to the commands for cutting, copying, and pasting the text, as well as changing character and paragraph formatting and creating a hyperlink.
Context menus are one of the most timesaving features available in Word.
This means you can add commands where you need them most. Styles are a formidable weapon in Word's formatting arsenal. A style is a collection of formats saved under a name. Applying a style to a selection applies all the formats defined by that style in one stroke. If you're already familiar with styles, here's a bonus tip for you.