Hard-core wine buffs have been eying this new wine preservation system since it was introduced this summer. Devised by medical device inventor Greg Lambrecht, Coravin is a game-changing gadget for preserving wine that allows you to pour a glass of wine without ever removing the cork -- and without oxygen ever touching the wine. How does it work? A thin, hollow needle is inserted through the cork to extract the wine and as it's poured out, it's replaced with inert argon gas from a small, neat canister. Remove the needle and the cork reseals itself. Coravin 100 with stand and two pressurized Coravin capsules costs $299 ($279 without the capsules). Capsules, which allow access up to 15 glasses of wines, are $10.95 each. Buy six for $56.95, bringing the price for each to just over $8. Free shipping.