Federico Viticci writing for iMore:
And when it comes to automating tasks on iOS, Workflow is the undisputed king. Learning to master Workflow is the first step to living an efficient, productive life on iOS, and it's how I've been working on my iPad for years now.
Workflow is one of the most important apps on my iOS devices. I use it to help me automate tasks in the classroom, at home, and on this blog (this article actually began in Workflow).
Federico is the undisputed master of Workflow, and an excellent writer/teacher. If you're looking to get more done on your iPhone or iPad, this article is an awesome place to start.