Typing mathematical symbols like Greek alphabet or symbols "≤", "≥", "≠", "∞" etc. takes a lot of time. To resolve this issue you can assign and expand them through AutoCorrect feature.
This tip describes how to add watermark text or picture.
Sometimes odd and even pages need to have different headers and footers. In a document with facing pages (mirror margins), odd-numbered pages appear on the right side and even-numbered pages on the left. You may want left-aligned headers on even-numbered pages and right-aligned headers on odd-numbered pages; this way, the headers always appear on the outside edges of your document. You can even create different odd and even headers and footers for each section in your document.
This tip describes how to place various information into Headers and Footers.
If you are the one of those who care about productivity of the work and tend to use keyboard instead of using a mouse to open menus and run commands, you might be interested how to reveal keyboard shortcuts and add more shortcuts to Word.
You can use the keyboard to move the insertion point and scroll document.
There are several keyboard combinations that are useful when you work with a table:
You can add dotted, dashed, or underlined tab leaders. A tab leader links related but separate items across a page, such as entries and prices in a menu or chapters and page numbers in a table of contents.
If you need to use current date or time stamp, Word provides two shortcut keys that do this for you.
Use nonbreaking hyphens to hyphenate phrases or terms that you don't want to wrap to another line. With nonbreaking hyphens, the entire phrase or term wraps to the next line instead of breaking.