Using intuition is practical only when the number of choices is limited. Those with few meetings, few changing inputs, and no imposed work hours have to limit more choices more broadly before using intuition for specific NAs is going to work.
Prioritizing based on high-level goals, as TesTeq pointed out, is the crucial first broad stroke to limit NAs. If you don't prioritize goals and projects, it will be hopeless to choose among the many possible NAs.
Another way to broadly limit NA choices is to schedule times upfront for important things. It looks like people with flexible schedules often set up some structure for their time. Katherine described Julie Morgenstern's "time maps" in another post. (Thanks for that book recommendation, by the way.) I too have done something similar which works very well, scheduling blocks of time to work on my most important projects. I have hesitated to block out my time too strictly, but I will check out the book. It sounds like a useful adjunct to GTD strategies for those who have lots of discretionary time.
Useful context lists can help, too. Contexts don't have to be purely physical places with hard edges. They do not have to require physical resources like a computer. Contexts should be any list of actions that is
useful in a given circumstance.
If my schedule is
somewhat flexible, but I have a few appointments or deadlines throughout the week, it is easy to choose my context and choose NAs, as Katherine described. However, when my schedule is
100% flexible, wide open, no constraints at all, it is much harder to make choices. This is the specific situation I'm talking about, one with few constraints. If you have a toddler to care for, you have a lot of constraints! I'm not suggesting any of this will apply to you. I'm sure it won't.
The weather doesn't help me choose, either. It hardly ever rains here. Nothing but sunny days for 6 months straight.
I am
not currently having any problems choosing my context or my NAs. But I once did, and others have posted similar questions to this forum. Queen Sarah's situation sounded similar, so I shared my experience in case it could be helpful for her situation. Mine is a specific situation, and I'm sure that my specific approach won't apply to other situations. Special-case solutions rarely generalize, but they are great for those special cases.
How about the following as a summary of recommendations only for people with
lots of discretionary time and
trouble choosing among many alternatives?
Situation: Some people have lots of discretionary time with few or no constraints or changing inputs.
Problem: They may find it hard to choose among their many
possible NAs on various context lists.
Solution: It's a lot easier to choose from a few things than from many. Make some big choices up front:
1) Review your high-level goals and make sure you're clear about the most important outcomes you want to achieve. (TesTeq)
2) Schedule out blocks of time to work toward your most important goals. (kewms)
3) Tweak your context lists to be more helpful. If it's helpful to have a list of things only related to one important project, then use that list. Don't worry about not having hard edges; that's OK; your situation doesn't have hard edges.
Additions, criticism, discussion?