Very few people are creative naturally. Most of us have to work at it constantly. Some ideas you can try:
- Our assignments (which you already are doing)
- Checkout images on flickr or other photography sites
- Take one object and see how many ways you can shoot it
Remember, you may take a hundred shots and only come up with 1 or 2 good ones. When you see a great shot someone took realize there may be quite a few rejects behind it and you don't see!