We know that reusing grocery bags is gross and disgusting, but now there is scientific proof that they can make you sick or even kill you.
http://hosted.ap.org/dynamic/stories/U/US_REUSABLE_BAG_VIRUS?SITE=AP&SECTION=HOME&TEMPLATE=DEFAULT&CTIME=2012-05-09-17-26-27
How long before we see warning notices at Trader Joe's and Whole Foods?