Maybe this can be a collection point for simple—really simple!—tips that just work. What may be second nature to experienced users may not have occurred to others who could benefit.
Use right-click + “Open link in new tab” (or pushing down on the center mouse scroll button) to open a new link from the list on the right (or anywhere else, for that matter). The usual left click replaces the page you are on with a new one, but it’s often convenient keep it immediately available in the original tab.