C-t swaps adjacent characters
  C-b/f move backward/forward a character
  C-p/n move up/down a line
  C-k kills (cuts) to the end of the line
  C-y yanks (pastes) what was killed (but does not use the same clipboard as Cmd-c)
  C-h deletes backwards one character
  C-d deletes forward one character

Probably more, but that about covers the ones I use.