About three months ago, I had split a long Computer list into functional groups like Writing and Email (In contrast, my location-based context lists are usually short.) It was a good change to make, but around Christmas both my elderly parents went into the hospital for unrelated problems, and that functional grouping did not work so well. I switched the functional computer contexts into time- and energy-based contexts like Full Focus (for things that need the most time and attention), Short (around 5-15 minutes) and Braindead. This turned out to be very helpful in sorting out what I really could do at a given moment. I may not keep my contexts this way, but it has been helpful.