The best way to store opened champagne is in a wine fridge or bucket filled with ice. You should keep it away from light and oxygen so that you don't cause any chemical change when enjoying your bubbles later on! But if there are no other options for storing them, make sure the bottle stays upright while horizontally placed upon its cap (so as not to allow too much pressure build-up). Store both wooden boxes/cases containing open bottles alongside refrigerators - just remember they'll need more room than standard-sized containers due to their bigger size. Find more useful tips in the infographic below.