Verge@work Suggestion: Essential Apps

Hey everybody, I'm a big fan of the Verge@Work series as well as the Verge Favorites and What's in my bag articles. I was wondering if there was any interest in creating a special post that points out some of the staffers' favorite apps? What ones do you use to get work done?

I know you've occasionally called out specific apps, but you guys are great at doing one-off interactive features like the gift guide and The Verge 50. A compilation of essential apps on each major platform would benefit from this type of styling and would be such a breath of fresh air compared to all the crappy "top ten app" listicles out in the world.

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I do random web design exercises and I sketched out a basic idea of what I'm talking about. Take a look at it here.

Oh, and Verge community members, what are the essential apps you use on a daily basis to get whatever you do done?