Planning Your Shoot
Talk over your shoot with other members of the production team and make sure you're clear on what shots you need to tell the story.
If you're on your own, write up a list of shots you need. Write the story beforehand in your head, and list the elements you want to get video of to do that story.
Think about what's going to look good visually, and how your shots are going to come together sequentially.
Try viewing your piece as a skeleton, and you're shooting the flesh for all those bones.