The module you shouldn't live without

When it comes to usability, there is a module that you MUST have on any Drupal project. Either if it is Drupal 7 or 8 (there is a separate version for each major core release) the Administration Menu/Admin Toolbar is the module that will save you tons of time when managing your website.

Drupal 7

Drupal 8

Drupal 7: Administration Menu https://www.drupal.org/project/admin_menu
Drupal 8: Admin Toolbar https://www.drupal.org/project/admin_toolbar