January 17, 2014 4:06 am Sales-tax-free weekend – all week Mass. stores busy with shoppers identifying what they’ll buy Saturday with no 6.25 percent tax US & World Videos 1:32 Amber Alert for 2 NH girls canceled, father in custody 2:53 Latest on Lewiston, Maine shootings 2:01 Local researchers looking to turn plastic into fuel 1:45 Gov. Healey to sign bottle ban order for state agencies 2:41 Leominster students return to school after floods