A lightweight, collaborative task management tool. I actually created this months ago because I wanted a very specific way of collaboratively tracking tasks and a very specific set of features. I think it's now to a point where it's complete enough that it can stand on its own as a fully-functional task management app.<p>My favorite part is the effort-impact matrix which helps me visualize which tasks to tackle next (depending on urgency, energy, or desire for instant gratification). I'd love to hear what you like and don't like about Product Sketch.<p>While in beta, it's free to use. I do plan on maintaining this long-term, as well as expanding it rather quickly. Looking for feedback and direction more than anything else at this point.