I recently ran across the article below on FOOD52, titled "How Long Does That Open Bottle of Wine Last, Really?"
I really like how Valerie and Hank explain the situation with open bottles of wine. They cover different factors that make wine go bad, how, and even better - how to extend the life of your open bottle.
Naturally, I would add one piece to the article. Specifically, they call out Coravin as an expensive wine preservation device. We agree 100% with that statement. BUT...I would ADD that lower cost Argon wine preservers in canisters - like Silvadore Wine Preserver - enables you to have all the advantages of effective wine preservation at home, without the high cost of a Coravin.
Regardless, the article below is a good one. It's informative, accurate, and well done. I definitely recommend you take a look:
If you want to preserve the fresh taste of your open bottle of wine for another day, don't suck. Create a 100% argon barrier to stop the oxidation, and place your bottle in a cool and dark place. Just don't trust the "click"...