[filmgeek]

This is part of the struggle with GTD. Don't Overplan...
Ex: Project "Get out of bed"
Next action - wakeup
Next action - take covers off
Next action - put right foot on floor.

Generally, I'm putting down next actions that take more than 2 minutes to do (Unless I'm afraid to forget something small.)

Along with that, I put any project that could suck time (including the "Shaving" one of yours.) As far as I'm concerned the first step is "R&D" and goes in a task based on such. It's a research task - but I usually give it a set paramater like "Find five articles on different shaving techniques: start @ wikipedia." This will invariably generate next actions.

Last, the idea of Next Actions here is to make it easy to overcome resistance and just 'crank out widgets.' Beware of items that you're not accomplishing, because you haven't broken them down.