If you're the primary administer of your website and you need spend a lot of time jumping around to different pages of your webiste, Drupal's standard menu system often makes it hard to move quickly to your destination. However, there are a couple of options for creating a dropdown menu on the top of each page that allows yourself and others to navigate quickly.

Method #1: The Administration Menu Dropdown Module

The first option is to use the Administration Menu Dropdown Module. This place the administration menu (available only to those with permission) across the top of your page in a clean drop down menu.  It looks something like this:

 

Installation is easy.  Simply download the module here, unpack it, upload the file to you're server in the sites/all/modules directory, and enable the module at admin > site building > modules.  You're done.  You're dropdown administration menu should appear at the top of your page.  

Method #2: The SimpleMenu Moule 

The SimpleMenu Module is similar to the above module, except instead of placing the administration menu at the top of the page, it use the entire default Navigation Menu.  This is good if you want you're create content links to appear in drop down menu or if you want non-administer users to access the dropdown menu.  

Though not as flashy as the above module, it's just as functional.  When installed, it should look something like this:

Installation is also the same as above.  Download the module here, unpack it, upload the file to you're server in thesites/all/modules directory, and enable the module at admin > site building > modules.  You're done.  You're dropdown simplemenu menu should appear at the top of your page.