Watching a TechEd 2011 video on Visual Studio Tips and Tricks, I was introduced to a cool keyboard shortcut to open a Command Prompt at the directory open in Windows Explorer. It is well known that this can be done by holding Shift while right clicking the mouse and choosing Open command window here.
To achieve the same using only the keyboard, press Alt+d, type cmd and press Enter. Alt+d is the keyboard shortcut in lots of Windows applications, including Windows Explorer, that puts the focus into the location bar. Type cmd in the location bar and press Enter to open a Command Prompt for the directory currently open in Explorer.
(Note: If you are using Windows with a non-English locale, this solution will not work for you. For such a situation, check out the solution offered by Airmax in the comments below.)
Tried with: Windows 7

Alt+d is English locale dependent.
More generic is F4.
Airmax: I agree. But, F4 involves a bit more work. You will need to delete the existing path and then type cmd.
F4 makes address bar active and drop-downs MRU list.
But more generic
Then i press ESC to close drop-down list. The path inside of address bar becomes selected and
i start typing what i need (replacing text).
So, finally 2 keys combination
Airmax: I had not thought of that. It is a good solution! I will point to this in the post