Wow, it’s been a while since posting about the last free promo, but Rita’s is kicking off the cold treat season with their annual first day of spring promo, and giving away free cups of water ice. Even though it’s cold out, who doesn’t love them some free water ice? Rita’s locations include Adams Morgan and Columbia Heights. You can search for your nearest Rita’s here. The giveaway is going on until 10 p.m….