I have an old bottle of champagne that DH got SOMEWHERE years ago--it's in one of those gift boxes with two glasses to go with it. I've saved it for a "special occasion"--well, since then, we have had two kids marry, our 30th anniversary, our 40th anniversary, the birth of 3 grandchildren, and the purchase of a lake house.
I don't know what kind of special occasion is going to warrant the uncorking of this stuff.