When using a cheat sheet like that I waste a lot of time scouring the image looking for text relating to the type of operation I want. I'd rather have a list of options grouped by operation type.
The flashcards are designed so the front is a description of some operation (ex. "motion cursor to end of the line" or "backward find word under cursor") and the back is the key combo to make that operation happen.
It works really well for me and I've noticed a huge improvement to my productivity in vim. If you're interested: https://github.com/MrPants888/vim_flashcards
This is definitely not the best cheatsheet for hanging above your computer, but more to be read as a tutorial. (Calling it a cheatsheet would be a stretch in this case.)
For your purposes (and what I do quite a bit anyway), google is the best cheatsheet.