Reading is cool and libraries rock.*
This week, go to the library. Wander through a section you generally ignore. For example, if you love fiction, take a gander at the biography shelves. Check out a book by an author you haven't read before -- or in a genre you haven't read in a while. Stretching your brain stretches your creativity. Branch out!
(The image is from Studio Mela on Etsy. I really like her stuff.)
*Short sentences with active verbs also rock. Try it. You'll like it.