It's not much, but Hyperdock is one of my favorite little Mac apps. Hyperdock allows you to quickly snap any window that may be open to various different sizes. I love it because i'm always on my computer in class so I quickly snap my web page and my Word .doc so that I can simultaneously type notes and surf the interwebs eliminating any sort of repetitive switching between screens action.
Also hovering the mouse of a particular dock item / program that is open, will show output a small picture of what is going on in that screen.
developers : http://hyperdock.bahoom.com/get