I found Doing to Done when researching productivity systems. I had tried a few different ones in the past, but none of them stuck; they either required too much work to set up or maintain, or they failed to actually increase productivity. But Doing to Done hits both marks; it's easy to set up (especially if you follow along with the workshop/masterclass) and maintain, and it's helped me focus on doing the things that matter most, while letting go of the clutter that wasn't actually helping me. Easily the best productivity system I've found.