I scream, you scream we all scream for ice cream — especially if it’s free. July 15 is National Ice Cream Day and ice cream lovers across the nation can celebrate with free or discounted dessert deals. Here are a few you can check out. Baskin-Robbins: Download the Baskin-Robbins mobile app for exclusive offers like a BOGO free cone offer and $2 off a medium milkshake. https://twitter.com/BaskinRobbins/status/1017800823898685441 Buster’s Real Ice Cream: Loyalty reward club members can get a $3 reward to use toward ice cream purchase. Carvel: This Sunday, buy a soft-serve cone or cup of any flavor and get a second cone or cup for free. Cold Stone Creamery: Sign up at coldstonecreamery.com for a buy-one-get-one free coupon. Dairy Queen: Download the Dairy Queen app and register and you’ll receive a few small Blizzard. Not valid in Texas. Dippin’ Dots: Get a free mini-cup during a specially designated two-hour window…