Dollar Tree Weekly Ad: FREE Toothbrush December 31, 2014 by SMFM Leave a Comment Don't Miss a deal! Sign up for our Daily Free Email HERE! Join us on Facebook HERE and our Facebook Group. Dollar Tree Weekly Ad Firefly Mouthwash or Toothbrush $1.00 $1/1 Firefly Product, exp. 12/31/14 (SS 05/04/14) Final Price: FREE