I suppose it deepnds what inspired you in the first place. For me, photography was a way to capture what I did not have the talent to draw, or at least draw quickly. So I would take pictures, then try to draw those pictures in multiple modes, suhc as the Van Gogh mode (and if you don't know what I mean, maybe you should go to an art museum for inspiration). Also, I've found that (literally) not having my equipment for a few months while starting to feel that lack of inspiration is giving me tremendous inspiration, as I just got it back this evening, and can't wait to go take pictures tomorrow! So, take a deep breath, put down the camera, pick out your favorite pictures and try to draw them, or go to museums and try to capture the feeling you get from a drawing or painting in your camera, or possibly you just need to ask a friend to hold on to your equipment indefinitely. When you find your hands itching for a camera, it's time for you to go get it back.
I know exactly how you feel. I feel the same way when I picekd up the guitar 3 years ago and then constantly lose inspiration after a few weeks. If you can drive, why not drive to different areas maybe 1 hour away and take pictures of other types of scenery. Get a new camera? Hey it works sometimes. Maybe you could even make a slideshow of photos and play music along to the photos. You could even take photos of your friends posing or just have fun in general. My friend likes to photograph different people and then compare them and see whats different about each person.Why not just go plain crazy?