I have a couple of wine related gadgets that I love, the first is The Original Vacu Vin Wine Saver that I found on Amazon a few years ago. This gadget vacuum seals your wine bottle before you put it back in the fridge and it's fantastic!
The second wine gadget that I love is this little thing called "Edgy". It cuts the foil seal from the bottle by placing it on top and turning it. The edgy has four circular blades that cut the foil, unfortunately they become dull rather quickly. It's a cheap device so buy a few of them.
What wine gadgets can't you live without?