arend

Use this plugin to hide admin menu items like Posts, Comments, Users, etc 
This makes it easier for your clients to navigate WordPress, no distractions, leave only those options that are required.
<h3>Usage</h3>
<ol>
<li>Select which menu entries you want to hide in Settings->Clean Admin UI</li>
<li>Refresh page to see effect</li>
</ol>

Clean Admin UI

Easy Wordpress Menu, Remove menu items from the admin menu

scribu

On the post editing screen, after saving a post, you will notice that the checked categories are displayed on top, breaking the category hierarchy. This plugin removes that “feature”.
Additionally, it automatically scrolls to the first checked category.
Works with custom taxonomies too.
Links: <a href="http://scribu.net/wordpress/category-checklist-tree" rel="nofollow ugc">Plugin News</a> | <a href="http://scribu.net" rel="nofollow ugc">Author’s Site</a>

Category Checklist Tree

Simple and without configuration, it's just does what it says it does.



Works as expected

Really, I just can't understand why WordPress developers walk another way - this is, how it should be! :)
I have launched over 100 websites on WordPress - and they all have this plugin.
Thanks again!

Thanks!

Preserves the category hierarchy on the post editing screen

Clean Admin UI vs Category Checklist Tree