I find that often times I have current projects that I just haven't made movement on that I'd like to move to my Someday, Maybe list. However, I've often got several next actions (and always at least one) on my context lists, so it's not as easy as just re-categorizing the project as S/M -- I also need to sift through my context lists to delete the next actions, so I resist the whole thing. Which means I've got a list of Projects that is not motivating me as it perhaps could if it were cleaner.

Of course, this begs the question of why the little, doable next actions on these projects aren't being done, but that's a whole 'nother can of worms!