The government health guidelines changed/reduced around March last year... they now advise no more than 4 standard drinks per day and no more than 10 per week. I'm tempted to move to Ireland.A member of this forum got me onto the Wirra Wirra Church Block 375mL bottles a few years ago, and I've never looked back. Very simple. and an excellent re-sealing cap.
It is especially good for vintage port. Most table wines I will tend to drink in one sitting... although some doctors may not agree that is healthy.
I’ve seen a similar thing some years ago at the Noosa Food and Wine festival. The circles were made of laboratory grade silicon so should resist the wine for quite a while.Agreed plastic lilely wouldn't last long.
I find vacuvin works well enough and is much easier, though I doubt it would last a week.
The other simple method for half a bottle is to just pour into a 350mL bottle which greatly reduces the surface area to the neck