I miss certain icons from the old Office 2003 toolbar, such as Print and Open-icons that I used constantly. Office 2007 instead forces me to click the big Office button to access such basic functions. That's one whole extra click!
But it's easy to add just about any Office feature to the Quick Access Toolbar, at the top of the screen next to the Office button. By default, the toolbar sports Save, Undo, and Redo icons, but you can customize it as you see fit. (I'm thinking specifically of Word 2007; the process, however, is the same for Excel and PowerPoint.)
For starters, click the little down arrow on the right edge of the toolbar. You'll see a list of popular commands such as Open, Quick Print, and Spelling & Grammar. Click any of them to add the corresponding icon to the Quick Access Toolbar. (Likewise, click any already-checked item to remove it from the toolbar.)
What if you want to add a feature that doesn't appear on this list? Simple: You can right-click almost any icon on the Ribbon (or in the Office menu) and choose Add to Quick Access Toolbar. Also, - to remove one of these custom jobs, just right-click its icon and choose Remove from Quick Access Toolbar.