Cool Web App for the Chronic To-Do Lister

I was looking through my cluttered desktop for something and came upon this web app that sparked an idea. Instead of the overused cliche - "Why didn't I think of that?", I asked myself, why are some of the coolest things in life the very simplest? Anyway, if you're a chronic to-do lister like me, check out PrintableChecklist.org and watch this quick introduction video.