Make a Table the Full Width of the Text
The Problem:
I'd like my table to take up the full text width of the page. But whenever I change the page margins, I need to change the width of the table manually to match.
The Solution:
Right-click the table, choose Table Properties, click the Table tab, check the "Preferred width" box, choose "Percent" in the "Measure in" drop-down list, and specify 100% in the middle drop-down list. Word will then change the table's width automatically when you change the margins of the page.