Shots are key to any unrememberable evening of drinking, but coordinating the two glasses necessary to shoot and chase can be exhausting, and incredibly confusing. Thankfully, sweet Mother of Cuervo, the Quaffer is here.

The Quaffer is an oversized shot glass shaped like a POM bottle. To load, just tilt, and fill the 2.25oz lower bulb with chaser and the 1oz upper bulb with shot. The Q's narrow waist prevents the liquids from mixing, so throwing it back unleashes a potent liquor/chaser one-two that'll have you fighting with oversized bouncers and undersized table lamps in no time.

Some of the lethal Quaffer shots we recommend:

Punta Del Fuego

Bottom chase: Sunkist Orange Soda

Top shot: Cheap Tequila

The Autobahn

Bottom chase: Cream Soda

Top shot: Jager

Redrum

Bottom chase: Mountain Dew Code Red

Top shot: Citrus Rum

The Sophisticato

Bottom chase: Ginger Ale

Top shot: Fernet Branca

There are also monster beer Quaffers available, holding 11oz in the bottom bulb -- perfect for your culturally insensitive car bombing of choice. But either Q will take the guess work out of binge-drinking and, more importantly, prevent you from suffering the indignity of training wheels ever again.