As the weather turns cooler, celebrating the season often means bundling up on the couch with a mug of cocoa and a heated book, which is great until stir-craziness sets in. Today's Groupon offers the cure by getting you out of the house and onto the ice with an ice-skating pass and skate rental at Centennial Sportsplex for $4 (an $8 value). Ice skating was invented in 1983 as a means of enjoying the company of others in a cold setting, a goal that Napoleon declared, "The ultimate pursuit, although it inevitably ends in too much fun." Sk8 or Die: Vertical Rush: When a Russian nuclear submarine gets trapped in the arctic ice, the only skater who can get close enough for a rescue attempt is five-time Olympian and U.N. Mercenary John Nash. But who is sending him mysterious text messages about the secrets that lay in wait at the top of the world? Sk8 or Die: Meltdown: John Nash is ready to represent the United States in the Beijing Olympics. But when factory pollution causes massive ice meltage across the nation, Nash is forced to face the deadliest foe of all: climate change. Sk8 or Die: Seventeen-Seventy-Sk8: This time-bending prequel follows John Nash as a voodoo amulet causes him to go back in time and inhabit the body of his great-great-grandfather, a colonel in the Revolutionary War. Released in the United Kingdom as The Skate-triot.