Think of your workspace in Photoshop as like a desk, you'll want enough room to work and have the tools you need near you. You might want to move things out of the way from time to time and then move them back.

In this screencast, we look at the layout of your Project workspace and how to view the different tools for it and how to correct any mistakes.
Simply by using the Window tool at the top of your screen, you can edit your Work Space settings.