That being said; I also agree with Luca. If there is some "big rocks" I personally reserve some time from calendar and make sure that I have time to do it. Then some integration between Google Apps and Weekdone would be really helpful. 

This is something to think about: http://blog.toggl.com/2013/01/new-on-toggl-timelin... If I do "lessons learned" or I try to rememder for example "accomplishments today" it would be really helpful to see somekind of log (like Toggl timeline) then do my own "wording"

Jira tasks are usually totally in "different level" than Weekdone taks. Jira tasks are usually more specified stuff (user stories, tasks "use this model x") and Weekdone is better more or less "big things" / features for example.