They have these things that can pull the air out of the bottle and keep the wine fresh for longer. We don't have use for that kind of thing. I don't know if this means I have a problem or not, but 1 bottle of wine (just for me) does not give me a hangover...hmm.
I have one of those things. I honestly can't tell you if it makes a difference. Like you, we rarely kept open bottles of wine around.
CD