In Windows XP, I had several folder saved as favorites in Windows Explorer, and could do Alt+A, 'letter' to quickly navigate to a favorite starting with 'letter' (for example, with a favorite named 'logs' pointing to C:\blah\blah\logs, Alt+A,L would immediately take me to the logs directory).
In Windows 7, they removed the Favorites menu bar, but added a listing in the navigation pane.
I've been trying to find a simple keyboard shortcut to quickly navigate to frequently used locations. Alt+D,F4 is the best I've found so far, but it requires actually looking through a list.