In other words, if you set keyframes for the camera, then between the keyframes it's difficult to determine where to (for example) quickly put text in front of the camera while it's moving. Is there any way to set objects so they are positioned in front of the camera automatically as it moves? Thanks guys!
You can Parent an object to the camera by first selecting the object, then the camera (so that the camera is highlighted in yellow), then pressing CtrlP> Object:
The object will now stay fixed relative to the camera: