#ad The list gets written first thing, with the most important job right at the top. Then a message needs an answer and a bill turns up, and by the evening the list looks almost exactly as it did in the morning.
This catches conscientious people most of all, because they care about not letting anything slip, so they keep every little thing in their heads. Dr. Steve G. Jones made The Decluttered Mind to help you readjust your priorities, so the important things come first and your concentration can get a big boost.