Most sports grow out of a simple formula—ball plus stick, ball plus kick, or car plus explosion. Obtain the necessary integers with today’s Groupon: for $20, you get $40 worth of new and used sporting goods at Larry's Sports Exchange.

Larry's Sports Exchange supplies customers with new and used athletic equipment for all seasons with an emphasis on hockey gear. Shoulder and elbow pads ($15+ each) cushion collisions with other skaters or territorial snowmen, and gloves and skates ($20+ each) protect digits from sticks and frozen floors. Hockey pants ($25) and helmets with cages ($35+) complete ensembles of ice-armour. Though Larry's Sports Exchange often swaps goods and soufflé recipes, today's deal is not valid when trading in used equipment.