Black Francis, lead singer of the Pixies and incredibly prolific solo artist as Frank Black, gave the Village Voice an interview on his creative process. A lot of it is specific to songwriting, but I thought this snipped was universally valuable. Beware, if you this your creativity is a fragile flower, his method might seem a little mechanical. All I can say is that I have used this exact method before and it works.
In the case of Svn Fngrs I had no idea what I was going to write about, but I was really up to the gut to try to go above and beyond the call of duty. And so I was under the gun and I was like, 'Okay, what the hell am I going to write about here? What am I going to write about?' And I literally just started doing the random article search function on Wikipedia. And I did this for quite a long time late one evening in a very tired state, and somehow I stumbled upon the article for demigods. And I was like, 'Oh, demigods.' And then, of course, 'Okay, well what is a demigod? And who was a demigod? What do they mean by demigod?' And, of course, on something like Wikipedia one article has other links in it and suddenly you’re off, you know. So the Internet has become a really great resource for me because I’m not a deep researcher. I just want to have an impression. I just need to find out some facts. I’ve already got my little concept going. My little concept is already in place, but I just need some facts so when I rhyme “phone” with “zone” my couplet - well, hopefully it has some artistic merit on its own, regardless of what it’s about or if it’s about anything - but if it happens to be about something, it’d be nice if it was sort of backing up some cool fact about the subject. It’s satisfying, I think, for the listener and it’s satisfying for me.