Cheat sheet for what?
For your stops? Do you know them by heart? By that I mean - what's a full stop from f/5.6? What's a 3/4 stop both ways from f/9.0? How many stops are there between 1.8 and 7.1? That's the kind of thing I'm talking about.
The stops and shutter speeds are the easy part. What is difficult is correctly relating them to the exposure value.
I totally agree with EttVenter with regard to getting out and shooting as much as possible. He is right you will learn all kinds of little knick knack things. As far as the f stops and apertures and shutter speeds and EV I started out on a film camera with no meter so I had to learn Sunny 16. It took many many rolls of film to get proficient and I still mess it up from time to time. Naturally I carried all this hard won knowledge over to digital which I feel has made me at least a more well rounded hobbyist if not a better photographer. A perfect example of learn as you go in my case is the evolution of my face and shoulder shooting. One of the critical things I've learned from other folks and reading is about coming down to the subjects level and not tilting the camera...keeping the sensor plane perfectly parallel to the face of the subject...yet I still routinely screw this one up. Someday soon hopefully it will become automatic for me without having to think about (I hope at least) and my skill in this area will grow. That is another important thing - I am still learning new things everytime I shoot almost and that is a good thing because it keeps it from getting boring.
I would suggest that you may try studying the Sunny 16 deal because that will teach you the stops and all the rest and how to apply them to whatever situation and sometimes it is a quirky tricky sort of deal. One of the great advantages of digital is you can delete it if it is not right and then reset and fire again. Don't try that with film unless you own an oil company or something because you'll be broke before you fully comprehend it all probably.
Good thread BTW..it is the little things like f stops that help make the bedrock foundation of a good photograph.