See that patient over there, the white and clammy one who's green around the gills and reaching for the yellow emesis basin? Yes, color her nauseous. And here you come dashing to the rescue, tearing open your secret little antiemetic: an alcohol prep pad. And what do you know? It works. The patient sniffs the pungent antiseptic and it mystically wards off the post-op queasiness that was about to spoil an otherwise uneventful surgery and foul your PACU.