I've been using Remember the Milk (RTM) for a couple years to manage all sorts of work and personal tasks with varying degrees of success. And lately, I've also been digging a bit more deeply into the Getting Things Done (GTD) "action management" methodology/philosophy, working on applying its principles to gain control over the myriad tasks that swirl around at work and at home each day.

We've all heard the cliche "if you fail to plan, you might as well plan to fail." Now comes this sobering piece from Overcoming Bias, by way of 43 Folders on The Planning Fallacy, "a common cognitive bias... which is a repeatable, documented error in thinking that apparently explains why we all tend to underestimate task-completion times."