The Coolest Thing You'll Do with Vodka.
Here's a fun trick I first saw at Sammy's Roumanian Steakhouse in New York City's Lower East Side.
If you're buying the OJ for the vodka anyway, transfer the juice to something else for screwdrivers later, and use the carton to freeze your bottle in a block of ice.
It's fun and impressive - for very little effort. Plus, encasing the bottle in ice is very good at keeping it cold. And it goes down a whole lot easier.