After upgrading a couple sites to WordPress 3.1 and testing various things I finally got annoyed enough by the new Admin Bar. I definitely understand the purpose of such a bar but I rarely use WordPress for just blogging software so for me and I imagine for others the WordPress Admin Bar is just in the way. Luckily you can disable or enable this on a per user basis by editing each users profile. Below are example image and instructions for disabling the Admin Bar for a user.
Disable WordPress 3.1+ Admin Bar Via WordPress User Profile:
To make this exciting and so we can say that we have used the new Admin Bar at least once we will start logged in on the front page of your site with the WP Admin Bar displaying as shown in the below example image.
WordPress 3.1+ Displaying Admin Bar For Specific User:
Now click the arrow next to your WordPress username in the Admin Bar to display the drop down menu for your user as shown in the below example image.
WP Admin Bar User Drop Down Menu:
As you can see there are three choices in the drop down including Edit Profile, Dashboard, and Log Out. To disable the Admin Bar we will want to select Edit Profile from the drop down which will redirect you to the Edit Profile page in the WordPress Admin site as shown in the below example image.
Edit Profile Page In WordPress Admin:
The last configurable option underneath Personal Options, which you can see above in the example image, will be the Show Admin Bar settings. There are two check boxes which include displaying the Admin Bar when viewing the site and displaying the Admin Bar when viewing the WordPress Admin. Remove the checks from each of the check boxes and then scroll to the bottom of the Edit Profile page and click the blue Update Profile button to save the settings. Now when you view the web site the WP Admin Bar will no longer display.