I will have to say....I am kind of addicted to Sonic Diet Vanilla Cokes! I love them! Reed loves going through Sonic too! He just starts saying cheese, when we turn in, for grilled cheese! That is when you know you go there too much! He also loves to drink out of a straw now and from a cup as well. He manages the large cup pretty well;) I try to limit my caffeine, but I just love Sonic diet cokes!