If you for entirely avoidable reasons end up with wine left over, a simple low-tech storage trick is to pour it into an ice cube bag and store it in the freeze

If you for entirely avoidable reasons end up with wine left over, a simple low-tech storage trick is to pour it into an ice cube bag and store it in the freezer to use for cooking. It saves you the trouble of drinking flat wine and makes for excellent sauces etc.