Thanks everyone who contributed their favorite keyboard shortcuts. I picked what I thought were the most helpful for someone fairly new to computers, and put together a little handout:
It's for new users, so I stuck with, basic, simple, and common. I hope it'll be helpful, but depending on the person, it might still be overwhelmingly complicated. But if it is well-received, I'll do a second one with the more advanced helpful shortcuts that people submitted.
Feel free to use or adapt it - I made it so it was easy to change the letters on the keys, so feel free to modify and expand.
And please let me know if you see any mistakes, or thought of a way to make it clearer or more helpful - or if you have an image better that the Microsoft clipart I used.
I added a note at the bottom about how to use these shortcuts for Mac, and I wanted to show what the Command key looked like. While searching for the image online, I also came across the origin of the Infinite Loop symbol, which I had never really wondered about before. Interesting.
Thanks to Adam Van Sickle of the Teton County Library - he worked to have the handout translated to Spanish, and allowed me to post the English/Spanish version here [pptx] for anyone to use. Thanks Adam!