How much wine is too much in a night?

[wondersofwine]

A couple glasses of wine a day can be healthy for you. More than that and the health benefits weigh on the other side (more detrimental effects than beneficial effects).
But I'm not one to police your consumption. If you are worried about the wine going bad, cork it tightly (or close it if it has a screw top opening) and store in refrigerator. With red wine you can take bottle out 40-60 minutes before drinking to let it warm to room temperature. Most wines are still quite drinkable the second or third day (some even seem to improve--I've had that experience with chiantis and a few other wines).