Google just released a new feature for blogger users to share blog posts automatically to Google+ profile. This auto sharing feature will definitely save your time by skipping extra manual steps of populating the sharebox after publishing blog post.
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The good thing about this auto sharing feature is that you don't need to follow dozen of steps or install scripts in your blogger blog to enable it. Instead of it you just have to mark a check on Automatically share after posting under Google+ tab from sidebar. Simply remove marked check to disable this feature in order to revert back to old manual prompt sharing box after publishing post.