Hey, parents, it's that time of the year again.......Texas' 11th annual sales tax holiday starts at midnight tonight. To save $8, you have to spend $100. It started as a back-to-school financial break for parents. Most apparel, shoes, backpacks and school supplies priced under $100 are tax-exempt in Texas until Sunday at midnight. These increased sales largely represent purchases that would have been made in any case. So, either way the weekend is in full swing and it's your chance to make some good deals.