> However, I organize files by day, not by task. Each day I create a new file for the day by copying the lists of the previous day's file minus the DONE list. I

> However, I organize files by day, not by task. Each day I create a new file for the day by copying the lists of the previous day's file minus the DONE list. I don't modify lists for previous days, so it's kind of an append-only log so I can see what was the state for any particular day. 1 file per day is easy to see as a whole as it mostly fits in one screen (and inside my working memory). I use plain text files because I found it much simpler to use, I don't have to install any software, it just works, and it's easily searchable. For my working files I use a similar system except I separate at least Months, often Weeks, and sometimes Days into subheadings for easy time tracking of tasks on various time partitions. So when I need to start a new heading for a new day, I just move all the incomplete TODO items into it, similar to you moving them into a new file. Occasionally I manually archive the completed tasks into files by year with headings by month only when I no longer need their full granularity.