title: Save Matlab workspace without saving or deleting figures
body: <p>The documentation for the <code>save</code> command says that you should delete figures if you don't want to bog down the <code>*.mat</code> file.  I <code>save</code> to a <code>*.mat</code> file periodically, and I re-use my figure after issuing <code>clf</code>.  I would prefer not to have to delete it just to <code>save</code> a <code>*.mat</code> file, then open a new figure.  Is there a way to do this?</p>