The Alabama Retail Association is encouraging consumers to shop local during the back-to-school sales tax holiday. The holiday begins Friday at 12:01 a.m. and ends Sunday at midnight. Alabama Retail Association Communications Manager Melissa Warnke says the "Shop Alabama Initiative" is underway. Eligible items include clothing priced at $100 or less, school supplies at $50 or less, books at $30 or less and computers and computer equipment selling at $750 or less.