 As for that tax-free weekend some states have, we looked it up. North Dakota and Minnesota do not have a tax holiday. Also, part of back to school is making sure you and your family are up to date on vaccinations. According to the U.S. Department of Health and Human Services, vaccination rates for kindergartners are at their lowest levels in decades. Local health professionals say getting your children vaccinated not only protects them, but their classmates as well.