When I want to navigate to a new page using the address bar in Safari without taking my hands off the keyboard, I use the keyboard shortcut Command + T, which opens a new tab and places the cursor in its address bar.
This is fine when I want to keep the original page open in another tab. But sometimes I want to replace it with the new page. Sometimes I can get back to the address bar by pressing Tab or Shift + Tab several times, but the number of times depends on the amount of tab-selectable fields on the page.
Is there a keyboard shortcut to select the address bar for the current page in Safari?