You start at a high level with all your tasks in a tree of tasks and sub-tasks. If you check one off it gets striked out and will automatically be deleted in 24 hours. You can edit tasks. Here you have the big picture.
Next, you can look at just the leaves, the things that need to be done at some point. These are the end tasks which have no children. You can highlight important leaves here.
Last, you can focus on just the leaves that have been highlighted and work on just those today. You can go through, check off those tasks and tomorrow return to the overview to choose what to work on again. This view shows only the things you want to work on, and hides the complexity of everything else that’s going on.
If you want to play with it, YATM is here.