Coravin lets you pour your wine without opening the bottle

Wine is pretty great, but who hasn’t let half a bottle go bad by accident or refrained from opening one because they only wanted a glass? Coravin is a gadget that pierces the cork and lets you pour any amount of wine, then seals the hole behind it when you’re done. No more wasted vino! But get ready to shell out for the gas cartridges that it runs on.