I am a big fan of shortcuts. If I can find something that takes even half a step out of my process, I am all over it. When I was learning AutoCAD (a super duper long time ago), I was taught using nothing but the command line. Now, I can breeze through designs like no one's business. But, when I started learning Adobe Illustrator, the commands were different, and my fast fingers got really confused. I was a hot frustrated mess.
So, in order to learn the Illustrator commands, I made my self a cheat sheet. And now it's yours. You no longer have to write it on your hand, or a slip of paper folded up into tiny rectangles. Just click on the image below to download.