You can stop the Toolbar from displaying by modifying the preferences associated with your Profile. Simply click on the Users link in the left-hand navigation to display the list of Users. From this list of Users, click your user name or click on the Edit link that appears beneath the user name when hovering your cursor over each row. Alternatively, click on the Your Profile link underneath the Users menu option in the left-hand navigation or within the fly-out menu.
When editing your Profile there is a Toolbar option as shown in the screen above.
- Show Toolbar when viewing site – Checking this box will display the Toolbar at the very top of your website (only for the person who is currently logged in)