Argonaut Wine & Liquor is one of Denver's largest wine and spirits supermarkets with over 40,000 square feet and more than 12,000 different items. Every year they have a one day only anniversary sale, which ends up being one of the top 5 selling days of the year, owner Ron Vaughn told WSD. This year the sale was on December 1 and we got the details, thanks to Tim Coughlin of DMG Financial. They knocked 20% off regularly priced wine, 15% of all spirits and $2 off a 12-pack of beer. There were also a number of brands with one-day deep discounts: