People that stacked OmniFocus
Omnifocus basically runs my life, I have used every todo app under the sun and Omnifocus is the only one that has been able to rise to any complex task/period of my life I can throw at it. 100% worth the time investment to learn it.
Incredible heads-down tool for organizing your thoughts and tasks based on however your mind works (especially if hierarchical list frameworks are effective for you). Recent cloud service and product integrations mean it's easier to share to it, adding richer context.