I've fallen into a habit of doing this pretty much every night. Just the one glass while cooking. I can make a bottle last over 4 nights doing this. So over a week it would be just less than two bottles. Does this sound ok from a consumption point of view?
To add I usually have a glass, eat my evening meal then have a cup of tea before bed! So it's not exactly a wild life. But I just find that a small glass of white wine adds something to my evening.