GTD with Shadow Plan · Like many of the best lifehacks, David Allen's techniques for Getting Things Done (GTD) feel so obvious once you've read about them, that you kick yourself for not thinking of it yourself years ago. It is not a big book and doesn't go into the philosophical and psychological background in the way Covey does. What it does provide is a small set of pragmatic rules for running your life efficiently... (19-Jul-2006 · GTD · PalmOS)