You can go to the address bar of your browser directly using the keyboard.
If you use internet explorer, Mozilla Firefox, you can access (highlight) the address bar directly by using the F6 short cut key in your keyboard.
If you use opera then press the F8 key in your keyboard to access the address bar.
Sometimes it might be necessary to access the address bar for retyping a new address or copying the URL of the current page. You can use this trick under these circumstances.