Not a LOT!

       © Paul Daniels.  Not much at all; personally I prefer on of two options:-
1. None at all.
2. LOTS of it.  These half measures are, to lapse into my vernacular. "Neither nowt nor summat."
      I was about to clone out a number of "smudges" when I realised t hey were part of the "scene". (Slow-flakes). Yup I said SLOW.
      I'm now wondering how much longer we can expect any, with the dire warnings we're getting; ref: Whatever name you choose to use.