usatoday.com — 7-Eleven doles out free Slurpees for its 85th birthday today. Chick-fil-A offers free meals to guests who come dressed as cows on Friday. That same day, Starbucks hands out its new Refreshers energy drink made from green coffee extract and fruit juice. And on Saturday, Dippin' Dots stores give out samples of new Dippin' Dot Clusterz.