I don't know about most people, but this works terribly for me. Motivation is huge for my happiness, so I want to do something when I'm in the mood for it. This means I do keep a list of the things I need to get done, so whenever I've got free time, I take a look at the list and see what I'm most in the mood to do. Of course, this is the real world -- sometimes something has a firm deadline so you have no choice (so…
It's a term I came up with as I observed myself making todo lists, completing them, feeling good about it, but realizing that I'm not getting from A to B on important projects. It's (comparatively) easy to make todo items like 'buy milk', 'get haircut', 'go on date with X', 'read 1 chapter of ', but these are what I call trivial accomplishments. Having a todo list 100% made up of these is a good way to fool yourself, because you will feel good about yourself (for a while), because that's just how we work, the illusion of progress fools the brain.
Way out: Separate todo lists into trivial and non-trivial, eg. I have a separate Trello list for each. Make sure your non-trivial list is not empty and you make progress on it. Hard items are writing/output versus reading/input. Another good way to identify them is if they're about Deliberate Practice.