The WordPress publish date (or time stamp) is a handy tool to help you sort your content.
With Custom Menus, you can now drag and drop whatever you'd like into a custom menu and even put it into a sidebar (instead of something like a Page menu manager plugin). Here's how.
The much-sought-after WordPress Screen Options can help you find modules allows you to show or hide modules on some screens and show or hide columns (of those modules) on other screens.
Creating columns in WordPress (or any online environment) is a beastly affair at best. CSS, DIV classes, yuck-ee-de-buck-ee. The magnificent Styles with Shortcodes Plugin for WordPress to the rescue.