May 26, 2011 No Comments Free KWC, Keep Worcester Clean, or Littering Means Your Tax Dollars Sticker Fill out the form and specify which bumper sticker you would like them to mail you. Free KWC, Keep Worcester Clean, or Littering Means Your Tax Dollars Sticker – EXPIRED Facebook Twitter Add Comment Notify me of follow-up comments by email. Notify me of new posts by email.