I'm stuck on what to do with my "completed tasks." This seems like it shouldn't be this tricky, but I don't like deleting forever the items I've checked off. I have this nagging sensation that I should be closing the loop somehow during a weekly review where I relate them back to their respective project outlines. Problem is that the items and the project lists are too long, and I can't seem to find the time to get that loop closed. How do you handle your completed tasks? Do you just delete them or do you file them? If so, what mechanisms do you use? I use Evernote for my project outlines and all reference materials but Toodledo for the Next Actions lists where folders in Toodledo match my tags in Evernote.