The article discusses the use of quick-response (QR) codes to help drinkers think before driving a vehicle in Texas' Department of Transportation (TxDOT) anti-drunken driving campaign. The TxDOT displays posters with a black-and-white QR codes with matrix-shaped surfaces that can be scanned with a smartphone. Sherry Matthews Advocacy Marketing and Texas Alcoholic Beverage Commission partnered with TxDOT in its anti-drunken driving campaign.