From snowmobiling on alfalfa to strapping on cross-country skis with wheels, Minnesotans are finding ways of coping with a frustrating lack of snow. It's been a mostly brown December in the southern half of the state, and northern Minnesota hasn't recorded snow depths of more than 8 inches this season. "We're not living up to our winter reputation," said Joan Hummel, a spokeswoman for Explore Minnesota Tourism, the state's tourism office. It snowed Friday morning in southern Minnesota, but the flakes were quickly melting, so residents will have to keep waiting for thick snow cover. In the meantime, they'll keep...