Here are a few tricks using the CTRL key that I find useful for quickly navigating through Word documents:

• Hold down the CTRL key and then press the RIGHT ARROW key to move from any point in a word to the beginning of the next word.
• Use CTRL+LEFT ARROW key to move from any point in a word to the beginning of that word.
• Use CTRL+UP ARROW key to move to the beginning of a paragraph.
• Use CTRL+DOWN ARROW key to move to the beginning of the following paragraph.