Do the who, what, where, why and how routine. Click on a gargoyle. If you are a poet, pick out all the smells, sounds and touch part of the picture. Write a word on a piece of paper, circle it and draw lines outward from the center with corresponding words. Good for poetry and songwriters.
First step is a minor problem then next step up to a slightly larger problem and so on.
Give your mind a kickstart. I've got what I feel is a great idea, and I just can't seem to get it onto the page properly. Writer's block isn't any fun. I live at 666 Writer's Block Way. My solution is simple.