Blogger Templates having both sidebars. One sidebar at left side and other is at right side is called mini wrapper blogspot templates. You can Subscribe Via E Mail to download all left and right sidebar blogger templates when published from authors. Such templates collection consist most of then time on magazine and portfolio blogspot themes. One side is using for popular posts. And other used for featured posts. The sidebars can be easily remove from the layout options. All you need to do is to click on remove widget.