Our grandfathers may have been forced to trudge 5 miles to school—uphill both ways, and in a blizzard—but that’s mainly because they failed to properly care for their snowboards. Slalom around the mistakes of your forefathers with today's Groupon: for $25, you get a full-service tune-up for your skis (a $35 value) or snowboard (a $45 value) at Avie's Ski/Sports in Westerly. Operated by a staff of expert powder runners, Avie’s provides a varied selection of snow sporting products and services. With today’s deal, you can tune your ailing boards or sharpen up your skis to ensure optimal control as you slide down your next slippery slope, dodging snow fiends and speeding through mountainside forests without the risk of a dangerous board blowout or an overheated ski.