How do I return to an app's 'home' or 'start' page.

When working in an app it's so easy to get lost and navigate away from where you need to be.  However, it's simple to return to where you started - to the app's 'home' or 'start' location:

• With the app in focus in the main window, click on the 'house' icon next to the address bar (top-left).  This will take you straight back to the app's home.
• You can also set a keyboard shortcut for this action in Settings > General > Keyboard Shortcuts > Open Homepage > Create a keyboard shortcut.