I am constantly tipping the remains of wine down the sink, promising that the next time I'll find a use for it before it turners into vinegar. Conversely I never have wine for recipes and I often wonder how much better it would taste if I had. Well now I've finally cracked it, freeze either red or white wine in an ice cube tray. Bear in mind it is only suitable for cooking. Just fill your ice cube tray with the remaining wine, once frozen, place in a freezer bag an label.