What's the best way to dispose of used wine corks?

Hello there! I'm Dr. Vinifera, but you can call me Vinny. Ask me your toughest wine questions, from the fine points of etiquette to the science of winemaking. And don't worry, I'm no wine snob—you can also ask me those "dumb questions" you're too embarrased to ask your wine geek friends! I hope you find my answers educational, empowering and even amusing. And don't forget to check out my most asked questions and my full archives for all my Q&A classics.
Dear Dr. Vinny,
What's the best way to dispose of used wine corks?
—John, Sammamish, Wash.
Dear John,
Check with your local recycling laws, but most synthetic corks and screwcaps can go into your recycling bin. Natural corks are biodegradable and can be safely tossed in the trash or a compost bin if you're so inclined. There are also some companies that collect natural corks and recycle them into other goods. There are some companies that operate drop-off locations for cork recycling, including Cork Forest Conservation Alliance and ReCork. And Cork Club has a system where you can mail your corks in, but you need a minimum of 500 corks or 5 pounds' worth.
—Dr. Vinny