doing something for the first time
I think this is a David Allen: "People like to do things well. Often, the most important thing for you to do is something you have not done before. So, beware the trap of choosing to do something you have done many times (and can do well) over the more important thing you have not done before, which, for lack of practice, you will probably stumble through."
And a question -- my GTD focus drifts in and out over time. A way to stay in focus would be to start the day with a GTD quote. I have used applications that start your day with a lilmerick sent to my desktop Is there something similar for GTD?