In a daze, I typed
abcdefghijklmnopqrstuvwxyz into Vim to see what would happen, and got
bcdefghijklmnopqrstuvwxyz. Well, that was boring. Anyway, it gave me the idea to write this short guide for what every letter of the alphabet represents/does in vim, along with a few of the commands I use on a (semi-)regular basis for each one. Enjoy!