From the moment you log in, you have access to core features in the menu where your name appears. You can easily return to the menu from wherever you are—even if you're in a course. The menu peeks from behind the other layers you have open.
When you select any link from the menu, you see a global view across all your courses. For example, Grades shows all your grading tasks organized by course. No need to navigate to each course to see what's ready for grading.