There are times as photographers that we need a shot in the arm to put inspiration back into our work. We may become stale because of overwork, lack of interesting subjects or some other reason. The following article posted by Scott Bourne on Photofocus provides some ideas that may help you turn on your creative juices.
Give it a read and see if it helps you generate some new ideas and enthusiasm for your photography. I found it to be simple and useful advice.