title: Is there a (repeat-last-command) in Emacs?
body: <p>Frequently, I've dug into apropos and docs looking for something like the following only to give up to get back to the task at hand:</p>
  
  <p>(repeat-last-command)</p>
  
  <p>do the last C- or M- command I just executed (to be rebound to a fn key)</p>
  
  <p>or sometimes the related: </p>
  
  <p>(describe-last-function)</p>
  
  <p>what keystroke did I just mistakenly issue, the effect of which I'd like to add to my bag of tricks. describe-key is close, but requires knowing what I typed. </p>
  
  <p>Am I simply asking too much from my trusty sidekick?</p>