I had an idea about To Do lists a few years ago. I realized that one of the biggest problems was the hidden complexity of the tasks, and unexpected roadblocks t

I had an idea about To Do lists a few years ago. I realized that one of the biggest problems was the hidden complexity of the tasks, and unexpected roadblocks that I'd encounter. Some tasks involved a lot of unknowns, or things that I would have to figure out as I went. The idea I had was premade To Do lists for various common tasks such as automobile maintenance, planning a trip, organizing an event, etc. Never did much with it.