Many people have problems with getting things done. Task managers can only do so much, because despite jotting down the dozen or so tasks that need to be taken care of for the weekend, it’s ultimately up to the end user to fulfill those promises. More often than not, GTD apps are not the cure all - because things like “cleaning the garage” or “putting clothes away” often have no incentive. Unless the reward is a wad of cash, many of us (especially as Americans) find it easier to procrastinate than keep up on our daily duties.
For those with the task manager blues, you might have already heard about this little dandy of an application called Dunnit!.