Like the previous poster on argon or vacuum systems to preserve wine after opening, I'm hoping to find a way to keep several bottles 'active' and enjoyed over several days. As I'm learning more about wine, it has been fun to try small amounts of several types for comparison at one sitting. But, the obvious downside is that the taste changes over several days. Maria in the previous post commented on the main way to save being small glass bottles filled to the top. This item, basically a bag that you squeeze to get the extra oxygen out, seems like it would be similar and very easy to use. What is the experience of the board with this item? Have any of you used it or considered it? How would you feel about this compared with glass storage jars?