You wake up to a half full, uncorked, and flat bottle of champagne from the night before. Huge waste if you dump it down the sink. Grab a silicone ice cube tray and fill it up and freeze. We picked up a set of Dexas silicone ice cube trays from Target. They are a vibrant red color and easily stack in your freezer to take up less space. You probably won't have leftover wine too often but when you do, freeze it and then use the frozen wine cubes for cooking your champagne sauce or as ice cubes for your morning mimosa.