There are a few of things that I can think of off the top of my head. I did not love the idea of having the “—” non-project (i.e., project for actions that don’t really belong in a GTD-defined project), for two reasons.
First, for some reason OmniFocus wants the non-project to be called miscellaneous and I could rename it on one device (say my Mac), but then (a) if had my inbox set to clean on either context or project, (b) I was working on another device (e.g., my iPad), and © I set an action item to have a context but no project, then OF would create a new miscellaneous project. That would also happen on my iPhone. (That might sound like an intricate set of conditions, but that’s only because it’s clumsy to describe.) I was not sure if I could fix that problem and did not investigate further because of the second and more important reason for my work flow.
Second, I use perspectives and other settings to make sure OF only surfaces tasks that I can work on in the situation I’m in (I want to avoid confusion so I’m not referring to that as context). That means, for example, I don’t want personal tasks showing up when I need to focus on work. But having a single overarching “—” project defeated that goal.
My method is to have a couple of “non-projects” or single action lists so I can segregate tasks by “domain” a little easier.
The second issue I had was with the recommendation to use “clean up immediately.” I’d rather have the control to press the broom icon when I’m ready and leave the tasks in place in case I have further edits.
The third issue was the idea of NOT setting a context (tag) for an action item until you are ready to put it in the queue. I’m actually on the fence about this one. Trying it out did remove a lot of clutter (tasks I couldn’t really get to in a particular situation) but my sense of order feels like this is a sloppy solution and that Omni’s other tools and features could be better used to solve this same problem. I haven’t settled this one in my mind yet.
@beck what were your thoughts about their recommended set up?
(Forgive all the parenthetical explanations. Those were intended for the OP and other readers who may not be familiar with the guide and still want to follow along.)