If you need more "proof" that the holidays are upon us, look no further than Costco's booze section. The warehouse store is selling huge bottles of egg nog...that's also full of alcohol.
The Eggnog Liqueur is being sold in 1.75-litre bottles for just $9.99.
The Liqueur comes in three flavors and has a 14.75% ABV, and contains real dairy, spiced rum, brandy, whiskey, and french vanilla flavoring.
Costco has introduced other boozy products in the past, including "spiked" popsicles and pre-made Jello-shots.