Now for something completely different...
I recently decided, in order to help clear my head when I'm stuck on either story writing or songwriting, that I'd start drawing again -- an activity I was once good at but gave up many, many years ago.
Because the idea is to clear my head, and not to rathole into yet another project, I've been doing quick sketches (5-15 min depending on how I'm felling). The sketches are done as digital drawovers of interesting photos I find.
It's become a good way for me to think about character or setting in a way that's not so over-focused as to inhibit creativity. Though I haven't been doing it long (a couple weeks now), it's led to some interesting new character and setting ideas.
My favorite so far is this one, which is titled simply "Axe Girl". She's not from anything I'm currently working on, just an interesting character riff (though she may end up becoming a story someday, since I like her attitude).