Found on gtdtimes.com: A Little Bit of Inspiration via Parkour: it’s all in your mind…
There are two themes here that I felt related well to GTD, first, the idea of responding appropriately to any situation… The second theme relates to mental discipline and the ability to overcome obstacles through the power of the mind.
For implementing GTD you might try out this web-based application:
Gtdagenda.com
You can use it to manage your goals, projects and tasks, set next actions and contexts, use checklists, schedules and a calendar.
A mobile version is available too.
As with the last update, now Gtdagenda has full Someday/Maybe functionality, you can easily move your tasks and projects between “Active”, “Someday/Maybe” and “Archive”. This will clear your mind, and will boost your productivity.
Hope you like it.