Tax-free weekend to start Friday in Tennessee and Virginia. KINGSPORT, Tenn. - A new school year is upon us, and with that comes school supply checklists. Friday starts a three-day holiday weekend in Tennessee and Virginia. The back to school aisle at Target in Kingsport is already packed with parents and students trying to check off their supply list. School shopping can be a little bit stressful and chaotic, says mother Candace Clay.