Depth first - breadth first
I think practice of putting only one next physical action on the next action list encourages doing them in breadth first order. One from one project then one from another and so on.
It is fine for ping-pong actions where I have for example to send something to someone and wait. But for tasks requiring more sustained effort it feels counterproductive.
I can spend time doing something from many projects but I feel that none of them is going anywhere, and inversely when I allocate few hours of time to one and only one project I really feel the progress.
Do you have similar observations and how do you advise to handle that?