[iib]

Some people that were interested in their productivity that I read seemed to have systems that regularly cleaned their todo lists for old tasks. Stephen King [1] advises aspiring writers not to note their writing prompts, as the best ideas should pop into your head regularly, or nullprogram.com [2] programming in /tmp/.

So maybe the way to go is to have a logrotate-like on your input file.

[1] On writing -- Stephen King, although I read it a very long time ago and would not be able to point to a specific page. [2] I searched the web but can't find the exact citation, and there is no search feature on the website.