Take a nostalgic sip of your childhood-mall food court or relive the day you blackmailed your babysitter for soft serve with today's Groupon. For $2, you get a medium Blizzard, a $4.84 value with tax, or a large Julius original, a $4.95 value with tax, from one of three Chicago-area Dairy Queen / Orange Julius locations. Pick up your chilly, creamy treat in Lincoln Park at 2200 N. Lincoln, in Bucktown at 1649 N. Damen, or at the Thompson Center on 100 W. Randolph. Because you'll want to take the smell of vanilla and chocolate crunchies home, today's Groupon also entitles you to 15% off a cake. Follow @Groupon_Says on Twitter.