GTD and ClearContext
While ClearContext is not designed specifically for GTD, many users find ClearContext to complement implementation of GTD in Outlook. In particular, ClearContext can streamline the use and management of context category tags in your tasks, while simultaneously organizing actions and to-dos into Projects.
Please take a look at our GTD page for more details: www.clearcontext.com/gtd/
GTD® and Getting Things Done® are registered trademarks of David Allen & Company. ClearContext is not affiliated with David Allen & Company in any way.