I have (setq org-clock-persist 'history) in my .emacs (and of course (org-clock-persistence-insinuate)), and the most recently-used tasks are indeed persistent between Emacs sessions. However, I like to use C-u C-u C-c C-x C-i to set a default task for general planning, etc. This default task does not seem to persist between sessions. Is there a way to either make the default task persistent, or to increase the number of tasks that are kept in the history?

 

I apologize if this answer is in the documentation and I have somehow missed it.