If you have ever opened a glass bottle of soda, water, or beer and needed to reseal it, you need a Monopol Hermetus. This gadget was given to me as a gift and I and have grown to rely on it for opening and resealing bottles. The Monopol Hermetus is made of steel, has a rubber surface for an air-tight seal, and is made in Germany. Pretty slick, get a couple here for just $9.99.