Good Gear Guide
In Pictures: 12 Chrome extensions power users will...
Chrome Office Viewer
You probably know that Chrome has a built-in PDF viewer. You might not know that Google also makes a free Microsoft Office file viewer. Click on a DOC, DOCX, XLS, XLSX, PPT, or PPTX file inside Chrome, and the viewer appears, with the document loaded and fully viewable (but not editable).
In Pictures: 12 Chrome extensions power users will love