You got set up yesterday, you've seen been to Nathan Smith's (http://denver2012.drupal.org/program/sessions/using-sass-compass-drupal-...) talk, been to John Albin's Zen Grids BoF (http://denver2012.drupal.org/bof/sasscompass-drupal-and-zen-grids), now Get Your Sass On and learn some advance Sass+Compass techniques to use in your projects!