Texas families can shop without paying sales taxes during this year’s sales tax holiday, which takes place Friday, Saturday and Sunday. People can purchase most types of clothing, footwear, school supplies and backpacks priced less than $100, according to the Texas Comptroller’s Office. Sales tax exemptions apply whether shoppers buy items in stores, online, by telephone or by mail, according to the comptroller’s office. Email newsletter signupIf a retailer mistakenly charges sales tax on a qualifying item, customers may request a refund directly from the seller. Texas Comptroller Don Huffines said Texas families are expected to save an estimated $142.5 million in state and local sales taxes during this year’s sales tax holiday.