Here's how to get it -
Open your browser window.
Open your browser window.
Click on the wrench in the top right corner.
Click on 'Settings' from the drop down menu.
Click on 'Settings' from the drop down menu.
You should be on the 'Basics' page of Settings.
Go down to 'Toolbar'.
Check the box that says, "Show Home Button".
That's all there is to it!
Your little house will be on the left, next to back, refresh, etc.
Very nice.