Sometimes I need a little more direction than just, "shoot more" to be inspired, so I gave myself a challenge.
I drove to a different city, parked, and walked around for two hours shooting whatever I saw. I had the screen on my camera turned off, limiting myself to just the viewfinder to prefect exposure. Also, I only allowed myself one shot per subject.
It was really, really hard, but I learned a lot. And I should shoot more.