Music as a writing tool.

About a decade ago I read a book with interviews with comic writers all giving tips on writing. One tip has stuck with me over the years. 

Devin Grayson best known for her runs on Catwoman, Black Widow and Titans had an idea about catering the music she listened to while working to the individual project and sometimes even the individual  character. This can have great benefits both actively during work as well as when you're just in a "writing" state of mind.