Nicolas Petton over at Emacs Café has an excellent post on how he uses Org Mode for Getting Things Done (GTD). You can find many articles that cover this material but I like Petton’s because he shows in detail how he configures Org Mode for GTD, covers his workflow, and, along the way, explains why he made the decisions he did.
If you’re interested in using the GTD method, Petton’s post is a good place to start. You probably won’t want to do everything exactly the way he does but the post provides a good framework to build your own system.
Petton says he’s been using the system for four years and has over 39,000 lines in the Org files devoted to GTD. If you have the discipline for GTD, it’s an excellent way of arranging your time and making sure that things get done when they should. Even if you don’t want to become a GTD disciple, Petton has some good ideas that you may want to emulate in your own workflow.