Ben Huson

Use the Site Settings plugin to create admin fields for storing short text snippets for use in your theme templates. For example, an email or phone number that is displayed via your header.php template.
It can also be used for storing data which you may need to reference such as the ID of a page or a post category which you use to feature posts on your home page.
Storing these settings in the admin is preferable to hardcoding them into your templates so they can be updated easily.
<a href="https://github.com/benhuson/site-settings/wiki" rel="nofollow ugc">Read the documentation</a> to find out how to add admin fields and sections.

Site Settings

Manage custom site settings and global content fields (extendable by plugins/themes).

Janis Elsts

This plugin will add a “Settings” link to every active plugin listed on the “Plugins” page (right next to the “Deactivate” and “Edit” links). This makes it easy to acccess plugin configuration without hunting through the entire dashboard menu.
The plugin finds the right admin page by automatically scanning through the WordPress menu structure to detect configuration-related plugin pages. Lab trials shown success rate of over 95%.
Additional notes :
<ul>
<li>Quick Configuration Links will automatically skip plugins that add their own custom link(s) to their “Plugins” page listing.</li>
<li>If a plugin has only one menu entry, the “Settings” link will always point to that page – even it has nothing to do with configuration. This is by design.</li>
</ul>

Quick Configuration Links

Automagically adds a "Settings" link to every active plugin on the "Plugins" page.

Site Settings vs Quick Configuration Links