I think a photo opens up something from our right and intuitive hemisphere - I always start with the picture, then add the words.
scribbling with some markers helps loosen your mind as well.
Just tear out something you like, spray mount it down, and add some color.
Let the words wander and meander, in their direction and their content.
the words might surprise you, and besides, it's just fun to play!
and HEY - I just saw that I had restricted the comments, now I fixed it so anyone can post one - so please let me know if you are here and what you think - I'd love some feedback!