I've had a mental block as a GM for several YEARS now, in no small part because of poor preparation skills. For last part of of November, however, I've been busily writing away, hammering out the background for a one-player superhero game I'll be starting tomorrow.
I'm sure I haven't gotten anywhere near 50 kwords, and it's more a series of timelines and outlines than prose -- but that's what one needs for a game setting. I've come up with interesting characters, long-term plot twists, and dramatic scenes, both as backstory and to be played out as the game progresses. In the last three days, I had a surge of inspiration, tying together three or four disparate elements and themes and bringing them together into one grand, intricate scheme.
And the oddest thing?
This is all building on notes and ideas I worked on last November... only to set them aside at the end of the month as other ideas took center stage.