This is the way. Obviously as mentioned, a calendar is a pre-requisite and for me so are various note-taking/writing systems such as a physical notebook, more .txt files, and sometimes heavier stuff like Google Docs. But those are only for deeper work or archival stuff. Most everything starts and and ends right in thst one .txt file. Each day new stuff goes at the top. Sometimes I go through it and delete things that have become meaningless or will never be useful.