
About a decade ago, I worked with a colleague (named Terry) who was obsessed with finding the right way to organize his day. He and I had long digressive conversations about how best to manage tasks, calendars, email, etc. During that time, I studied things like the Covey method heavily. One of the enduring things I took from the Covey stuff was the distinction between the
urgent and
important. Lots of things are both, but there are some things in life that are urgent but not important and others that are important but not urgent. Terry and I discussed this category a lot, because busy people tend to ignore that quadrant the most.
Fast forward to today. I don't use the Covey system any more because it does not match my work habits well. I've struggled for a while putting together an effective way to handle my increasingly complex ToDo lists. I keep finding some applications that handle parts of what I need well, but fall down on other parts. For example, I've been using
TaskPaper for a while, which I like because it's very simple, text based, and lightweight. But the thing that TaskPaper doesn't do well is handle the semi-recurring stuff, like haircut or dentist appointments: recurring appointments that fall into the "I need to do this 6 weeks after the last time I completed it" category. For that, I've been using a special purpose tool called
Sciral Consistency (commercial, with a "try before you buy" option). It's not really a ToDo list manager so much as way to handle that specialized relationship between semi-recurring tasks and calendars. The Sciral Consistency site says that it handles the following types of conditions:
- They don't have deadlines or rigid time intervals associated with them.
- In order to gain and retain their benefits, you must perform them on a regular basis over a long period of time.
- The ideal amount of time that elapses between completions of a particular task are unique to that task. To gain the maximum benefit you shouldn't do them too frequently or infrequently.
- They can be carried out by you with minimal or no coordination with other people.
- They are often “routine” tasks for which you have not firmly established a habit of carrying them out as second nature.
- They are (in the words of Stephen Covey) “important, but not urgent.”
Sciral Consistency handles these things using a unique calendar view, which looks like this (also from their site):

You create tasks with threshold values: after I finish this task, I need to do it again between 10 and 14 days from the finish date. You can have a bunch of these calendars. Like the last bullet point says, it is great for handling recurring "important but not urgent" tasks. I've been using Sciral Consistency for a while, and it serves me well.
I'm still on the lookout for a comprehensive solution. Recently, I've become mostly addicted to
OmniFocus, a great GTD inspired task manager, which somewhat handles this special case. I haven't succumbed to the GTD religion, but like the Covey stuff before, I've assimilatedwhat I consider the good parts and made them part of my routine. I'll say more about OmniFocus once it has sunk into my work habit.