Admin Menu WP free plugin from Semiologic is indispensable time saver for anybody doing any work on WP websites. Little menu in top, right corner of the screen gives you instant access to WP Dashboard, Admin Settings, New Posts and Pages, Manage Posts and Pages, Plugins, Themes, Widgets, Comments, Cache and Profile.
No need to hit back button anymore.
It saves me few hours a week.
Everybody who is active WP user is wasting hours without it.

You can get it free at Semiologic semiologic.com/software/admin-menu/

Click on image to see screenshot

Semiologic Pro has many premium plugins and widgets, actually, it is the complete, advanced and SEO optimized WP platform. Most of the people don't really realize the power and time saving they could have using Semiologic Pro.

You could try Sem-reloaded theme which is very cool and free, and does much more than many premium paid themes. And with Semiologic Pro enabled it is much more powerful, highly SEO optimized, you do anything with just one click, including WP and plugin-in upgrades, custom designs, scripts, media, newsletters, ads management and more.