(DALLAS) -- Slurpee enthusiasts unite.
The nation’s largest convenience store chain, 7-Eleven is expected to give away five million -- roughly 1,000 per store -- 7.11-ounce Slurpees to celebrate the chain’s unofficial birthday: 7/11.
The birthday Slurpee giveaway proved a successful marketing tactic last year, when 7-Eleven handed out 4.5 million icy beverages in exchange for a 38 percent sales increase.
The campaign also leverages social media sites Twitter and Facebook to draw traffic to the stores and to the company’s website, Slurpee.com, where fans can download hats and confetti to join the celebration.
Like other national chains, 7-Eleven has found freebies to be very lucrative.
Copyright 2011 ABC News Radio