Sapore Oil & Vinegar is coming to 660 Pennsylvania Avenue, SE in the former Quinzos space in March 2012. Their Facebook page says:
Welcome to Sapore Oil & Vinegar, Washington DC’s first gourmet Oil & Vinegar shop to offer over 24 premium Extra Virgin Olive oils and Balsamic Vinegars, single sourced and flavor infused, plus Sea & Mineral Salts, hand crafted Spice Blends and Pastas. We are located in Historic Capitol Hill, around the corner from Eastern Market. Sapore means “taste, or flavor” in Italian, and we encourage you to taste any of our products before you buy. From the most passionate foodie to the reluctant cook, we have something to make your next dish delicious!
Our mission is to offer the public the freshest, most high quality oils and vinegars at a reasonable price, while providing education and cooking ideas to make their purchase most enjoyable.
Sounds like this could be very cool.