Getting Things Done (GTD) by David Allen revolutionized productivity, though many find it overly complicated. For those of us less inclined to be engineers or lacking follow through, we need a simpler solution. Thank you Leo Babauta for writing Zen to Done: The Ultimate Simple Productivity System.
This short book simplifies the entire GTD system down to very specific actions that are easily implemented into your current routine. No longer are you burdened with maintaining a large organization system. You can apply the concepts at you own pace and decide what is most important for your needs.
Leo writes a great blog at ZenHabits.net which is a valuable resource. Take a moment and read this short book, then apply one habit this week and add another when you master the first.