fedmich

This plugin will help you hide the default WordPress dashboard widgets like Incoming Links, etc. 
And also adds a Quick Menu Finder on your dashboard which would help save some time finding those menus that are deeply nested under a submenu.
You can also remove the Akismet Stats from your Dashboard Menu, Theme Editor, Plugin Editor, Custom Background, Custom Header as well.
<a href="http://fedmich.com/tools/dashboard-menus-cleaner" rel="nofollow ugc">Dashboard & Menu Cleaner</a> built by <a href="http://fedmich.com" rel="nofollow ugc">Fedmich</a>
<h3>More Info</h3>
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Dashboard & Menu Cleaner (Quick Menu Finder)

This plugin will help you hide the default WordPress dashboard widgets like Incoming Links, etc.

socialeum

Scan and delete unwanted auto-generated WordPress images and save huge diskspace. Delete thumbnail sizes (started or ended with 150px, 280px 300px or 1024px) and move them to a trash folder inside your uploads directory. Preview and restore images from the trash.
Whenever you upload an image, WordPress creates three additional resized versions of that image. This increases your hosting inodes and unnecessarily occupies disk space.

Auto Generated Images Remover

Short Description: Scan and remove auto-generated WordPress image thumbnails safely.

Dashboard & Menu Cleaner (Quick Menu Finder) vs Auto Generated Images Remover