I don't know if you ever feel this way but many of my days are so busy I can barely think straight. It leaves little down time and even less time to clear my thoughts and focus on creativity. I've been making an effort to focus on creativity every morning on the bus ride into work. I have a spiral bound book I carry with me. I've been surprised and amazed by the number of creative thoughts that come to mind when I just give myself time to let all of my other stuff go for awhile.
And it's also interesting that most of my ideas just pop into my thoughts. It's like "Where did that come from?" Problem is I'm on my way to work and now all I want to be doing is SCRAPPING!