How fast could you work if you never touched your Mac's mouse? Print this reference guide and see how many things are faster with the keyboard!
LifeHacker recently published an extremely basic keyboard guide which we think is an excellent place to start exploring your Mac's keyboard shortcuts. They only missed one critical key combo which is good for closing stuff just about anywhere.
Nobody learns keyboard shortcuts all at once. These guides are necessary to let you glance and improve slowly. There's no wrong way to learn!
While we're at it, here are some shortcuts for Photoshop CS6. Enjoy!